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CREATE TABLE people (People_ID number, District text, Name text, Party text, Age number); CREATE TABLE debate (Debate_ID number, Date text, Venue text, Num_of_Audience number); CREATE TABLE debate_people (Debate_ID number, Affirmative number, Negative number, If_Affirmative_Win others);
Show the distinct venues of debates
SELECT DISTINCT Venue FROM debate
easy
CREATE TABLE people (People_ID number, District text, Name text, Party text, Age number); CREATE TABLE debate (Debate_ID number, Date text, Venue text, Num_of_Audience number); CREATE TABLE debate_people (Debate_ID number, Affirmative number, Negative number, If_Affirmative_Win others);
Show the names of people, and dates and venues of debates they are on the affirmative side.
SELECT T3.Name , T2.Date , T2.Venue FROM debate_people AS T1 JOIN debate AS T2 ON T1.Debate_ID = T2.Debate_ID JOIN people AS T3 ON T1.Affirmative = T3.People_ID
medium
CREATE TABLE people (People_ID number, District text, Name text, Party text, Age number); CREATE TABLE debate (Debate_ID number, Date text, Venue text, Num_of_Audience number); CREATE TABLE debate_people (Debate_ID number, Affirmative number, Negative number, If_Affirmative_Win others);
Show the names of people, and dates and venues of debates they are on the negative side, ordered in ascending alphabetical order of name.
SELECT T3.Name , T2.Date , T2.Venue FROM debate_people AS T1 JOIN debate AS T2 ON T1.Debate_ID = T2.Debate_ID JOIN people AS T3 ON T1.Negative = T3.People_ID ORDER BY T3.Name ASC
hard
CREATE TABLE people (People_ID number, District text, Name text, Party text, Age number); CREATE TABLE debate (Debate_ID number, Date text, Venue text, Num_of_Audience number); CREATE TABLE debate_people (Debate_ID number, Affirmative number, Negative number, If_Affirmative_Win others);
Show the names of people that are on affirmative side of debates with number of audience bigger than 200.
SELECT T3.Name FROM debate_people AS T1 JOIN debate AS T2 ON T1.Debate_ID = T2.Debate_ID JOIN people AS T3 ON T1.Affirmative = T3.People_ID WHERE T2.Num_of_Audience > 200
hard
CREATE TABLE people (People_ID number, District text, Name text, Party text, Age number); CREATE TABLE debate (Debate_ID number, Date text, Venue text, Num_of_Audience number); CREATE TABLE debate_people (Debate_ID number, Affirmative number, Negative number, If_Affirmative_Win others);
Show the names of people and the number of times they have been on the affirmative side of debates.
SELECT T2.Name , COUNT(*) FROM debate_people AS T1 JOIN people AS T2 ON T1.Affirmative = T2.People_ID GROUP BY T2.Name
medium
CREATE TABLE people (People_ID number, District text, Name text, Party text, Age number); CREATE TABLE debate (Debate_ID number, Date text, Venue text, Num_of_Audience number); CREATE TABLE debate_people (Debate_ID number, Affirmative number, Negative number, If_Affirmative_Win others);
Show the names of people who have been on the negative side of debates at least twice.
SELECT T2.Name FROM debate_people AS T1 JOIN people AS T2 ON T1.Negative = T2.People_ID GROUP BY T2.Name HAVING COUNT(*) >= 2
medium
CREATE TABLE people (People_ID number, District text, Name text, Party text, Age number); CREATE TABLE debate (Debate_ID number, Date text, Venue text, Num_of_Audience number); CREATE TABLE debate_people (Debate_ID number, Affirmative number, Negative number, If_Affirmative_Win others);
List the names of people that have not been on the affirmative side of debates.
SELECT Name FROM people WHERE People_id NOT IN (SELECT Affirmative FROM debate_people)
hard
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
List the names of all the customers in alphabetical order.
SELECT customer_details FROM customers ORDER BY customer_details
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Sort the customer names in alphabetical order.
SELECT customer_details FROM customers ORDER BY customer_details
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find all the policy type codes associated with the customer "Dayana Robel"
SELECT policy_type_code FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id WHERE t2.customer_details = "Dayana Robel"
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
What are the type codes of the policies used by the customer "Dayana Robel"?
SELECT policy_type_code FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id WHERE t2.customer_details = "Dayana Robel"
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which type of policy is most frequently used? Give me the policy type code.
SELECT policy_type_code FROM policies GROUP BY policy_type_code ORDER BY count(*) DESC LIMIT 1
hard
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the type code of the most frequently used policy.
SELECT policy_type_code FROM policies GROUP BY policy_type_code ORDER BY count(*) DESC LIMIT 1
hard
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find all the policy types that are used by more than 2 customers.
SELECT policy_type_code FROM policies GROUP BY policy_type_code HAVING count(*) > 2
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which types of policy are chosen by more than 2 customers? Give me the policy type codes.
SELECT policy_type_code FROM policies GROUP BY policy_type_code HAVING count(*) > 2
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the total and average amount paid in claim headers.
SELECT sum(amount_piad) , avg(amount_piad) FROM claim_headers
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
What are the total amount and average amount paid in claim headers?
SELECT sum(amount_piad) , avg(amount_piad) FROM claim_headers
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the total amount claimed in the most recently created document.
SELECT sum(t1.amount_claimed) FROM claim_headers AS t1 JOIN claims_documents AS t2 ON t1.claim_header_id = t2.claim_id WHERE t2.created_date = (SELECT created_date FROM claims_documents ORDER BY created_date LIMIT 1)
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
How much amount in total were claimed in the most recently created document?
SELECT sum(t1.amount_claimed) FROM claim_headers AS t1 JOIN claims_documents AS t2 ON t1.claim_header_id = t2.claim_id WHERE t2.created_date = (SELECT created_date FROM claims_documents ORDER BY created_date LIMIT 1)
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
What is the name of the customer who has made the largest amount of claim in a single claim?
SELECT t3.customer_details FROM claim_headers AS t1 JOIN policies AS t2 ON t1.policy_id = t2.policy_id JOIN customers AS t3 ON t2.customer_id = t3.customer_id WHERE t1.amount_claimed = (SELECT max(amount_claimed) FROM claim_headers)
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which customer made the largest amount of claim in a single claim? Return the customer details.
SELECT t3.customer_details FROM claim_headers AS t1 JOIN policies AS t2 ON t1.policy_id = t2.policy_id JOIN customers AS t3 ON t2.customer_id = t3.customer_id WHERE t1.amount_claimed = (SELECT max(amount_claimed) FROM claim_headers)
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
What is the name of the customer who has made the minimum amount of payment in one claim?
SELECT t3.customer_details FROM claim_headers AS t1 JOIN policies AS t2 ON t1.policy_id = t2.policy_id JOIN customers AS t3 ON t2.customer_id = t3.customer_id WHERE t1.amount_piad = (SELECT min(amount_piad) FROM claim_headers)
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which customer made the smallest amount of claim in one claim? Return the customer details.
SELECT t3.customer_details FROM claim_headers AS t1 JOIN policies AS t2 ON t1.policy_id = t2.policy_id JOIN customers AS t3 ON t2.customer_id = t3.customer_id WHERE t1.amount_piad = (SELECT min(amount_piad) FROM claim_headers)
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the names of customers who have no policies associated.
SELECT customer_details FROM customers EXCEPT SELECT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id
hard
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
What are the names of customers who do not have any policies?
SELECT customer_details FROM customers EXCEPT SELECT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id
hard
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
How many claim processing stages are there in total?
SELECT count(*) FROM claims_processing_stages
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the number of distinct stages in claim processing.
SELECT count(*) FROM claims_processing_stages
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
What is the name of the claim processing stage that most of the claims are on?
SELECT t2.claim_status_name FROM claims_processing AS t1 JOIN claims_processing_stages AS t2 ON t1.claim_stage_id = t2.claim_stage_id GROUP BY t1.claim_stage_id ORDER BY count(*) DESC LIMIT 1
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which claim processing stage has the most claims? Show the claim status name.
SELECT t2.claim_status_name FROM claims_processing AS t1 JOIN claims_processing_stages AS t2 ON t1.claim_stage_id = t2.claim_stage_id GROUP BY t1.claim_stage_id ORDER BY count(*) DESC LIMIT 1
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the names of customers whose name contains "Diana".
SELECT customer_details FROM customers WHERE customer_details LIKE "%Diana%"
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which customers have the substring "Diana" in their names? Return the customer details.
SELECT customer_details FROM customers WHERE customer_details LIKE "%Diana%"
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the names of the customers who have an deputy policy.
SELECT DISTINCT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id WHERE t1.policy_type_code = "Deputy"
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which customers have an insurance policy with the type code "Deputy"? Give me the customer details.
SELECT DISTINCT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id WHERE t1.policy_type_code = "Deputy"
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the names of customers who either have an deputy policy or uniformed policy.
SELECT DISTINCT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id WHERE t1.policy_type_code = "Deputy" OR t1.policy_type_code = "Uniform"
hard
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which customers have an insurance policy with the type code "Deputy" or "Uniform"? Return the customer details.
SELECT DISTINCT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id WHERE t1.policy_type_code = "Deputy" OR t1.policy_type_code = "Uniform"
hard
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the names of all the customers and staff members.
SELECT customer_details FROM customers UNION SELECT staff_details FROM staff
hard
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
What are the names of the customers and staff members?
SELECT customer_details FROM customers UNION SELECT staff_details FROM staff
hard
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the number of records of each policy type and its type code.
SELECT policy_type_code , count(*) FROM policies GROUP BY policy_type_code
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
For each policy type, return its type code and its count in the record.
SELECT policy_type_code , count(*) FROM policies GROUP BY policy_type_code
medium
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the name of the customer that has been involved in the most policies.
SELECT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id GROUP BY t2.customer_details ORDER BY count(*) DESC LIMIT 1
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which customer have the most policies? Give me the customer details.
SELECT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id GROUP BY t2.customer_details ORDER BY count(*) DESC LIMIT 1
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
What is the description of the claim status "Open"?
SELECT claim_status_description FROM claims_processing_stages WHERE claim_status_name = "Open"
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the description of the claim status "Open".
SELECT claim_status_description FROM claims_processing_stages WHERE claim_status_name = "Open"
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
How many distinct claim outcome codes are there?
SELECT count(DISTINCT claim_outcome_code) FROM claims_processing
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Count the number of distinct claim outcome codes.
SELECT count(DISTINCT claim_outcome_code) FROM claims_processing
easy
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Which customer is associated with the latest policy?
SELECT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id WHERE t1.start_date = (SELECT max(start_date) FROM policies)
extra
CREATE TABLE Customers (Customer_ID number, Customer_Details text); CREATE TABLE Staff (Staff_ID number, Staff_Details text); CREATE TABLE Policies (Policy_ID number, Customer_ID number, Policy_Type_Code text, Start_Date time, End_Date time); CREATE TABLE Claim_Headers (Claim_Header_ID number, Claim_Status_Code text, Claim_Type_Code text, Policy_ID number, Date_of_Claim time, Date_of_Settlement time, Amount_Claimed number, Amount_Piad number); CREATE TABLE Claims_Documents (Claim_ID number, Document_Type_Code text, Created_by_Staff_ID number, Created_Date number); CREATE TABLE Claims_Processing_Stages (Claim_Stage_ID number, Next_Claim_Stage_ID number, Claim_Status_Name text, Claim_Status_Description text); CREATE TABLE Claims_Processing (Claim_Processing_ID number, Claim_ID number, Claim_Outcome_Code text, Claim_Stage_ID number, Staff_ID number);
Find the customer who started a policy most recently.
SELECT t2.customer_details FROM policies AS t1 JOIN customers AS t2 ON t1.customer_id = t2.customer_id WHERE t1.start_date = (SELECT max(start_date) FROM policies)
extra
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the number of accounts.
SELECT count(*) FROM Accounts
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
How many accounts are there?
SELECT count(*) FROM Accounts
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
How many customers have opened an account?
SELECT count(DISTINCT customer_id) FROM Accounts
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Count the number of customers who have an account.
SELECT count(DISTINCT customer_id) FROM Accounts
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the id, the date of account opened, the account name, and other account detail for all accounts.
SELECT account_id , date_account_opened , account_name , other_account_details FROM Accounts
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the ids, date opened, name, and other details for all accounts?
SELECT account_id , date_account_opened , account_name , other_account_details FROM Accounts
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the id, the account name, and other account details for all accounts by the customer with first name 'Meaghan'.
SELECT T1.account_id , T1.date_account_opened , T1.account_name , T1.other_account_details FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.customer_first_name = 'Meaghan'
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the ids, names, dates of opening, and other details for accounts corresponding to the customer with the first name "Meaghan"?
SELECT T1.account_id , T1.date_account_opened , T1.account_name , T1.other_account_details FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.customer_first_name = 'Meaghan'
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the account name and other account detail for all accounts by the customer with first name Meaghan and last name Keeling.
SELECT T1.account_name , T1.other_account_details FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.customer_first_name = "Meaghan" AND T2.customer_last_name = "Keeling"
extra
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the names and other details for accounts corresponding to the customer named Meaghan Keeling?
SELECT T1.account_name , T1.other_account_details FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T2.customer_first_name = "Meaghan" AND T2.customer_last_name = "Keeling"
extra
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the first name and last name for the customer with account name 900.
SELECT T2.customer_first_name , T2.customer_last_name FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T1.account_name = "900"
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the full names of customers with the account name 900?
SELECT T2.customer_first_name , T2.customer_last_name FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id WHERE T1.account_name = "900"
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
How many customers don't have an account?
SELECT count(*) FROM Customers WHERE customer_id NOT IN (SELECT customer_id FROM Accounts)
extra
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Count the number of customers who do not have an account.
SELECT count(*) FROM Customers WHERE customer_id NOT IN (SELECT customer_id FROM Accounts)
extra
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the unique first names, last names, and phone numbers for all customers with any account.
SELECT DISTINCT T1.customer_first_name , T1.customer_last_name , T1.phone_number FROM Customers AS T1 JOIN Accounts AS T2 ON T1.customer_id = T2.customer_id
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the distinct first names, last names, and phone numbers for customers with accounts?
SELECT DISTINCT T1.customer_first_name , T1.customer_last_name , T1.phone_number FROM Customers AS T1 JOIN Accounts AS T2 ON T1.customer_id = T2.customer_id
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show customer ids who don't have an account.
SELECT customer_id FROM Customers EXCEPT SELECT customer_id FROM Accounts
hard
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the customer ids for customers who do not have an account?
SELECT customer_id FROM Customers EXCEPT SELECT customer_id FROM Accounts
hard
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
How many accounts does each customer have? List the number and customer id.
SELECT count(*) , customer_id FROM Accounts GROUP BY customer_id
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Count the number of accounts corresponding to each customer id.
SELECT count(*) , customer_id FROM Accounts GROUP BY customer_id
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What is the customer id, first and last name with most number of accounts.
SELECT T1.customer_id , T2.customer_first_name , T2.customer_last_name FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id ORDER BY count(*) DESC LIMIT 1
extra
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Return the id and full name of the customer with the most accounts.
SELECT T1.customer_id , T2.customer_first_name , T2.customer_last_name FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id ORDER BY count(*) DESC LIMIT 1
extra
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show id, first name and last name for all customers and the number of accounts.
SELECT T1.customer_id , T2.customer_first_name , T2.customer_last_name , count(*) FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the the full names and ids for all customers, and how many accounts does each have?
SELECT T1.customer_id , T2.customer_first_name , T2.customer_last_name , count(*) FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show first name and id for all customers with at least 2 accounts.
SELECT T2.customer_first_name , T1.customer_id FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id HAVING count(*) >= 2
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the first names and ids for customers who have two or more accounts?
SELECT T2.customer_first_name , T1.customer_id FROM Accounts AS T1 JOIN Customers AS T2 ON T1.customer_id = T2.customer_id GROUP BY T1.customer_id HAVING count(*) >= 2
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the number of customers.
SELECT count(*) FROM Customers
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Count the number of customers.
SELECT count(*) FROM Customers
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the number of customers for each gender.
SELECT gender , count(*) FROM Customers GROUP BY gender
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
How many customers are there of each gender?
SELECT gender , count(*) FROM Customers GROUP BY gender
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
How many transactions do we have?
SELECT count(*) FROM Financial_transactions
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Count the number of transactions.
SELECT count(*) FROM Financial_transactions
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
How many transaction does each account have? Show the number and account id.
SELECT count(*) , account_id FROM Financial_transactions
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Count the number of financial transactions that correspond to each account id.
SELECT count(*) , account_id FROM Financial_transactions
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
How many transaction does account with name 337 have?
SELECT count(*) FROM Financial_transactions AS T1 JOIN Accounts AS T2 ON T1.account_id = T2.account_id WHERE T2.account_name = "337"
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Count the number of financial transactions that the account with the name 337 has.
SELECT count(*) FROM Financial_transactions AS T1 JOIN Accounts AS T2 ON T1.account_id = T2.account_id WHERE T2.account_name = "337"
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What is the average, minimum, maximum, and total transaction amount?
SELECT avg(transaction_amount) , min(transaction_amount) , max(transaction_amount) , sum(transaction_amount) FROM Financial_transactions
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Return the average, minimum, maximum, and total transaction amounts.
SELECT avg(transaction_amount) , min(transaction_amount) , max(transaction_amount) , sum(transaction_amount) FROM Financial_transactions
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show ids for all transactions whose amounts are greater than the average.
SELECT transaction_id FROM Financial_transactions WHERE transaction_amount > (SELECT avg(transaction_amount) FROM Financial_transactions)
hard
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the ids for transactions that have an amount greater than the average amount of a transaction?
SELECT transaction_id FROM Financial_transactions WHERE transaction_amount > (SELECT avg(transaction_amount) FROM Financial_transactions)
hard
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the transaction types and the total amount of transactions.
SELECT transaction_type , sum(transaction_amount) FROM Financial_transactions GROUP BY transaction_type
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are total transaction amounts for each transaction type?
SELECT transaction_type , sum(transaction_amount) FROM Financial_transactions GROUP BY transaction_type
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the account name, id and the number of transactions for each account.
SELECT T2.account_name , T1.account_id , count(*) FROM Financial_transactions AS T1 JOIN Accounts AS T2 ON T1.account_id = T2.account_id GROUP BY T1.account_id
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Return the names and ids of each account, as well as the number of transactions.
SELECT T2.account_name , T1.account_id , count(*) FROM Financial_transactions AS T1 JOIN Accounts AS T2 ON T1.account_id = T2.account_id GROUP BY T1.account_id
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the account id with most number of transactions.
SELECT account_id FROM Financial_transactions GROUP BY account_id ORDER BY count(*) DESC LIMIT 1
hard
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What is the id of the account with the most transactions?
SELECT account_id FROM Financial_transactions GROUP BY account_id ORDER BY count(*) DESC LIMIT 1
hard
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the account id and name with at least 4 transactions.
SELECT T1.account_id , T2.account_name FROM Financial_transactions AS T1 JOIN Accounts AS T2 ON T1.account_id = T2.account_id GROUP BY T1.account_id HAVING count(*) >= 4
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the ids and names of accounts with 4 or more transactions?
SELECT T1.account_id , T2.account_name FROM Financial_transactions AS T1 JOIN Accounts AS T2 ON T1.account_id = T2.account_id GROUP BY T1.account_id HAVING count(*) >= 4
medium
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show all product sizes.
SELECT DISTINCT product_size FROM Products
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the different product sizes?
SELECT DISTINCT product_size FROM Products
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show all product colors.
SELECT DISTINCT product_color FROM Products
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
What are the different product colors?
SELECT DISTINCT product_color FROM Products
easy
CREATE TABLE Customers (customer_id number, customer_first_name text, customer_middle_initial text, customer_last_name text, gender text, email_address text, login_name text, login_password text, phone_number text, town_city text, state_county_province text, country text); CREATE TABLE Orders (order_id number, customer_id number, date_order_placed time, order_details text); CREATE TABLE Invoices (invoice_number number, order_id number, invoice_date time); CREATE TABLE Accounts (account_id number, customer_id number, date_account_opened time, account_name text, other_account_details text); CREATE TABLE Product_Categories (production_type_code text, product_type_description text, vat_rating number); CREATE TABLE Products (product_id number, parent_product_id number, production_type_code text, unit_price number, product_name text, product_color text, product_size text); CREATE TABLE Financial_Transactions (transaction_id number, account_id number, invoice_number number, transaction_type text, transaction_date time, transaction_amount number, transaction_comment text, other_transaction_details text); CREATE TABLE Order_Items (order_item_id number, order_id number, product_id number, product_quantity text, other_order_item_details text); CREATE TABLE Invoice_Line_Items (order_item_id number, invoice_number number, product_id number, product_title text, product_quantity text, product_price number, derived_product_cost number, derived_vat_payable number, derived_total_cost number);
Show the invoice number and the number of transactions for each invoice.
SELECT invoice_number , count(*) FROM Financial_transactions GROUP BY invoice_number
medium