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What is the average stocking density of salmon farms in Norway?
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CREATE TABLE salmon_farms (id INT,name TEXT,country TEXT,stocking_density FLOAT); INSERT INTO salmon_farms (id,name,country,stocking_density) VALUES (1,'Farm A','Norway',25.3); INSERT INTO salmon_farms (id,name,country,stocking_density) VALUES (2,'Farm B','Norway',23.1);
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SELECT AVG(stocking_density) FROM salmon_farms WHERE country = 'Norway';
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Calculate the total number of animals in each habitat type.
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CREATE TABLE habitat (species VARCHAR(50),habitat_type VARCHAR(50),animal_count INT);
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SELECT habitat_type, SUM(animal_count) FROM habitat GROUP BY habitat_type;
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List all companies that have not yet had an exit event and are in the Fintech industry
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CREATE TABLE exit_strategies (company_id INT,exit_type TEXT,exit_year INT); INSERT INTO exit_strategies (company_id,exit_type,exit_year) VALUES (1,'Acquisition',2020); INSERT INTO exit_strategies (company_id,exit_type,exit_year) VALUES (2,NULL,NULL); CREATE TABLE industry (company_id INT,industry TEXT); INSERT INTO industry (company_id,industry) VALUES (1,'Fintech'); INSERT INTO industry (company_id,industry) VALUES (2,'Retail');
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SELECT name FROM company WHERE id NOT IN (SELECT company_id FROM exit_strategies WHERE exit_type IS NOT NULL) AND id IN (SELECT company_id FROM industry WHERE industry = 'Fintech');
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List all sustainable projects with their start and end dates
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CREATE TABLE Project (id INT,name VARCHAR(20),start_date DATE,end_date DATE); CREATE TABLE Sustainability_Standard (project_id INT,standard VARCHAR(20));
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SELECT Project.name, Project.start_date, Project.end_date FROM Project INNER JOIN Sustainability_Standard ON Project.id = Sustainability_Standard.project_id;
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What was the total revenue for each cuisine type in February 2022?
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CREATE TABLE restaurant_revenue (restaurant_id INT,cuisine_type VARCHAR(255),revenue DECIMAL(10,2),transaction_date DATE); INSERT INTO restaurant_revenue (restaurant_id,cuisine_type,revenue,transaction_date) VALUES (1,'Indian',6000,'2022-02-01'),(2,'Japanese',8000,'2022-02-02');
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SELECT cuisine_type, SUM(revenue) as total_revenue FROM restaurant_revenue WHERE transaction_date BETWEEN '2022-02-01' AND '2022-02-28' GROUP BY cuisine_type;
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What is the maximum number of workplace safety violations for any sector in the last year?
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CREATE TABLE if not exists violations (id INT PRIMARY KEY,sector VARCHAR(255),violation_date DATE,num_violations INT); INSERT INTO violations (id,sector,violation_date,num_violations) VALUES (1,'construction','2022-01-01',5),(2,'construction','2022-04-01',10),(3,'mining','2022-07-01',7);
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SELECT MAX(num_violations) FROM violations WHERE violation_date >= DATE_SUB(CURRENT_DATE, INTERVAL 1 YEAR);
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What is the maximum funding amount for biotech startups in Texas?
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CREATE TABLE startups (id INT,name VARCHAR(100),location VARCHAR(50),industry VARCHAR(50),funding FLOAT); INSERT INTO startups (id,name,location,industry,funding) VALUES (1,'StartupA','TX','Biotech',2000000.0); INSERT INTO startups (id,name,location,industry,funding) VALUES (2,'StartupB','TX','Biotech',3000000.0); INSERT INTO startups (id,name,location,industry,funding) VALUES (3,'StartupC','NY','Biotech',4000000.0);
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SELECT MAX(funding) FROM startups WHERE location = 'TX' AND industry = 'Biotech';
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How many autonomous driving research studies were conducted in Japan in the year 2020?
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CREATE TABLE ResearchStudy (id INT,title VARCHAR(100),year INT,location VARCHAR(50),type VARCHAR(50));
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SELECT COUNT(*) FROM ResearchStudy WHERE year = 2020 AND location = 'Japan' AND type = 'Autonomous Driving';
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What is the average project timeline for sustainable building projects in the state of Washington?
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CREATE TABLE ProjectTimeline (ProjectID INT,State TEXT,Timeline INT); INSERT INTO ProjectTimeline (ProjectID,State,Timeline) VALUES (101,'WA',60),(102,'OR',50),(103,'WA',70),(104,'OR',55);
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SELECT AVG(Timeline) FROM ProjectTimeline WHERE State = 'WA' AND ProjectID IN (SELECT ProjectID FROM SustainableProjects);
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Delete records in waste_generation table where waste type is 'Plastic Bags'
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CREATE TABLE waste_generation (id INT PRIMARY KEY,location VARCHAR(255),waste_type VARCHAR(255),quantity INT,date DATE);
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DELETE FROM waste_generation WHERE waste_type = 'Plastic Bags';
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Find the minimum temperature for each crop type
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CREATE TABLE crop (id INT,type VARCHAR(255),temperature FLOAT); INSERT INTO crop (id,type,temperature) VALUES (1,'corn',22.5),(2,'soybean',20.0),(3,'cotton',24.3),(4,'corn',18.5),(5,'soybean',19.5);
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SELECT type, MIN(temperature) FROM crop GROUP BY type;
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What is the average number of physiotherapists in rural areas in South Africa?
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CREATE TABLE SouthAfricanHealthcare (Province VARCHAR(20),Location VARCHAR(50),ProviderType VARCHAR(30),NumberOfProviders INT); INSERT INTO SouthAfricanHealthcare (Province,Location,ProviderType,NumberOfProviders) VALUES ('Province A','Rural Area A','Doctor',15),('Province A','Rural Area B','Nurse',20),('Province A','Rural Area C','Physiotherapist',12),('Province B','Rural Area D','Physiotherapist',10);
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SELECT AVG(NumberOfProviders) FROM SouthAfricanHealthcare WHERE Province IN ('Province A', 'Province B') AND Location LIKE '%Rural Area%' AND ProviderType = 'Physiotherapist';
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Identify the defense projects with timelines that overlap with at least one other project.
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CREATE TABLE DefenseProjects (ProjectID INT,ProjectName VARCHAR(100),StartDate DATE,EndDate DATE);
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SELECT A.ProjectID, A.ProjectName FROM DefenseProjects A JOIN DefenseProjects B ON A.ProjectID <> B.ProjectID AND A.StartDate <= B.EndDate AND B.StartDate <= A.EndDate;
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Add a new 'habitat' record into the 'habitats' table
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CREATE TABLE habitats (id INT,name VARCHAR(50),location VARCHAR(50),size FLOAT);
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INSERT INTO habitats (id, name, location, size) VALUES (1, 'Forest', 'Amazon', 50000.0);
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Find the average response time for natural disasters in each quarter of 2018
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CREATE TABLE natural_disasters_2018 (id INT,disaster_date DATE,response_time INT); INSERT INTO natural_disasters_2018 (id,disaster_date,response_time) VALUES (1,'2018-01-01',12),(2,'2018-04-01',15),(3,'2018-07-01',18),(4,'2018-10-01',20);
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SELECT EXTRACT(QUARTER FROM disaster_date) as quarter, AVG(response_time) as avg_response_time FROM natural_disasters_2018 GROUP BY EXTRACT(QUARTER FROM disaster_date);
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How many times has the most popular vegan dish been ordered?
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CREATE TABLE Menu (id INT,dish_name VARCHAR(255),dish_type VARCHAR(255),popularity INT); INSERT INTO Menu (id,dish_name,dish_type,popularity) VALUES (1,'Tofu Stir Fry','Vegan',150),(2,'Black Bean Burger','Vegan',200),(3,'Chickpea Curry','Vegan',250);
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SELECT MAX(popularity) FROM Menu WHERE dish_type = 'Vegan';
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What is the minimum number of artworks created by artists who have works in the 'MoMA' museum?
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CREATE TABLE artist_museums (artist_id INT,museum_name TEXT); INSERT INTO artist_museums (artist_id,museum_name) VALUES (1,'MoMA'),(2,'Met'),(3,'Tate'),(4,'MoMA'),(5,'Tate'); CREATE TABLE artworks (id INT,artist_id INT,title TEXT,museum_id INT); INSERT INTO artworks (id,artist_id,title,museum_id) VALUES (1,1,'Dora Maar au Chat',1),(2,2,'Red Painting',NULL),(3,3,'Untitled',3),(4,4,'The Persistence of Memory',1),(5,5,'Composition with Red Blue and Yellow',NULL); CREATE TABLE museums (id INT,name TEXT); INSERT INTO museums (id,name) VALUES (1,'MoMA'),(2,'Met'),(3,'Tate'); CREATE TABLE museum_artworks (museum_id INT,artwork_id INT); INSERT INTO museum_artworks (museum_id,artwork_id) VALUES (1,1),(1,4),(3,3);
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SELECT MIN(artworks.id) FROM artworks JOIN artist_museums ON artworks.artist_id = artist_museums.artist_id JOIN museum_artworks ON artworks.id = museum_artworks.artwork_id WHERE museums.name = 'MoMA';
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Determine the number of volunteers who participated in 'Environment' projects in H1 2022, broken down by month.
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CREATE TABLE volunteer_hours (volunteer_id INT,project_id INT,hours INT,volunteer_date DATE);
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SELECT DATE_FORMAT(vp.volunteer_date, '%Y-%m') as month, COUNT(DISTINCT v.volunteer_id) as total_volunteers FROM volunteer_projects vp JOIN volunteer_hours vh ON vp.project_id = vh.project_id WHERE vp.cause = 'Environment' AND vp.year = 2022 AND vh.volunteer_date BETWEEN '2022-01-01' AND '2022-06-30' GROUP BY month;
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What is the combined environmental impact of our mining and processing operations in 2020?
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CREATE TABLE environmental_impact (operation_id INT,operation_type VARCHAR(20),impact_score INT,year INT); INSERT INTO environmental_impact (operation_id,operation_type,impact_score,year) VALUES (1,'mining',50,2020),(2,'processing',80,2020),(3,'mining',60,2019),(4,'processing',90,2019);
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SELECT impact_score FROM environmental_impact WHERE operation_type IN ('mining', 'processing') AND year = 2020
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Identify the number of schools built in each country in Europe between 2010 and 2020, inclusive.
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CREATE TABLE Schools (id INT,name TEXT,country TEXT,build_date DATE); INSERT INTO Schools (id,name,country,build_date) VALUES (1,'Primary School A','France','2016-01-01'); INSERT INTO Schools (id,name,country,build_date) VALUES (2,'Secondary School B','Germany','2018-01-01');
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SELECT country, COUNT(*) FROM Schools WHERE build_date BETWEEN '2010-01-01' AND '2020-12-31' GROUP BY country;
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Which artists in 'London' have more than 2 collections?
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CREATE TABLE artists (id INT,city VARCHAR(20),collections INT); INSERT INTO artists (id,city,collections) VALUES (1,'London',2),(2,'London',3),(3,'New York',1),(4,'London',4),(5,'London',1);
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SELECT city, collections FROM artists WHERE city = 'London' AND collections > 2;
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What is the average flight safety score for flights operated by SkyHigh Airlines in Europe?
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CREATE TABLE Flights (flight_id INT,airline VARCHAR(255),region VARCHAR(255),safety_score INT);
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SELECT AVG(safety_score) FROM Flights WHERE airline = 'SkyHigh Airlines' AND region = 'Europe';
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What is the average donation amount for donors who donated more than $1000 in 2021?
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CREATE TABLE donations (id INT,donor_id INT,donation DECIMAL(10,2),donation_date DATE);
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SELECT AVG(donation) FROM donations WHERE donation > 1000 AND YEAR(donation_date) = 2021;
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What is the minimum speed for vessels that have transported coal?
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CREATE TABLE Vessels (id INT,name VARCHAR(50),type VARCHAR(50),average_speed DECIMAL(5,2)); CREATE TABLE Cargo (vessel_id INT,cargo_type VARCHAR(50),transport_date DATE); INSERT INTO Vessels (id,name,type,average_speed) VALUES (1,'Vessel1','OilTanker',15.5),(2,'Vessel2','BulkCarrier',12.3),(3,'Vessel3','BulkCarrier',11.2); INSERT INTO Cargo (vessel_id,cargo_type,transport_date) VALUES (1,'Oil','2022-01-01'),(1,'Oil','2022-04-01'),(2,'Coal','2022-01-15'),(3,'Coal','2022-02-01');
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SELECT MIN(Vessels.average_speed) FROM Vessels INNER JOIN Cargo ON Vessels.id = Cargo.vessel_id WHERE Cargo.cargo_type = 'Coal';
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What is the total number of teachers who have completed professional development courses in each subject area and have more than 5 years of teaching experience?
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CREATE TABLE teacher_training (teacher_id INT,subject_area VARCHAR(50),completed BOOLEAN,teaching_experience INT); INSERT INTO teacher_training (teacher_id,subject_area,completed,teaching_experience) VALUES (1,'Mathematics',TRUE,10),(2,'Mathematics',FALSE,2),(3,'Science',TRUE,8),(4,'Science',TRUE,6),(5,'English',FALSE,3);
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SELECT subject_area, SUM(completed) as num_teachers FROM teacher_training WHERE teaching_experience > 5 GROUP BY subject_area;
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How many journalists were arrested in Africa in the last 6 months?
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CREATE TABLE journalist_arrests (id INT,journalist VARCHAR(255),location VARCHAR(255),date DATE); INSERT INTO journalist_arrests (id,journalist,location,date) VALUES (1,'Journalist 1','Africa','2023-01-01'),(2,'Journalist 2','Africa','2023-02-01');
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SELECT COUNT(*) FROM journalist_arrests WHERE location = 'Africa' AND date >= DATEADD(month, -6, GETDATE());
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What is the average rating of the TV shows produced in India and released between 2010 and 2015, categorized by genre?
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CREATE TABLE tv_shows (id INT,title VARCHAR(255),rating FLOAT,release_year INT,country VARCHAR(50),genre VARCHAR(50)); INSERT INTO tv_shows (id,title,rating,release_year,country,genre) VALUES (1,'Show1',7.5,2010,'India','Comedy'),(2,'Show2',8.2,2012,'India','Drama'),(3,'Show3',6.8,2015,'India','Action');
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SELECT genre, AVG(rating) FROM tv_shows WHERE release_year BETWEEN 2010 AND 2015 AND country = 'India' GROUP BY genre;
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Alter the workforce_training table to add a column for employee ID in the national identification format
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CREATE TABLE workforce_training (id INT PRIMARY KEY,employee_name VARCHAR(255),training_topic VARCHAR(255),training_hours INT,training_completion_date DATE);
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ALTER TABLE workforce_training ADD COLUMN national_id VARCHAR(50);
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What is the 'Production Time' for 'Jeans' in 'Europe'?
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CREATE TABLE jeans_production(garment VARCHAR(20),region VARCHAR(20),production_time INT); INSERT INTO jeans_production VALUES('Jeans','Europe',18);
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SELECT production_time FROM jeans_production WHERE garment = 'Jeans' AND region = 'Europe';
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What is the average rating of tours in Europe that are both wheelchair accessible and offer vegetarian meals?
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CREATE TABLE if NOT EXISTS tours (id INT,name TEXT,rating FLOAT,wheelchair_accessible BOOLEAN,vegetarian_meal BOOLEAN); INSERT INTO tours (id,name,rating,wheelchair_accessible,vegetarian_meal) VALUES (1,'Mountain Biking Adventure',4.5,false,true),(2,'Historic City Tour',4.2,true,false),(3,'Cultural Exploration',4.8,true,true);
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SELECT AVG(rating) FROM tours WHERE wheelchair_accessible = true AND vegetarian_meal = true AND country = 'Europe';
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What is the average permit cost per square foot for each permit type in the state of New York?
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CREATE TABLE permit_costs (permit_id INT,permit_type TEXT,state TEXT,cost INT,sqft INT); INSERT INTO permit_costs (permit_id,permit_type,state,cost,sqft) VALUES (1,'Residential','New York',80000,2500),(2,'Commercial','New York',300000,7500);
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SELECT permit_type, AVG(cost/sqft) FROM permit_costs WHERE state = 'New York' GROUP BY permit_type;
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What is the maximum song_length in the hiphop genre?
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CREATE TABLE genres (genre VARCHAR(10),song_id INT,song_length FLOAT); INSERT INTO genres (genre,song_id,song_length) VALUES ('hiphop',7,202.5),('hiphop',8,245.8),('hiphop',9,198.1);
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SELECT MAX(song_length) FROM genres WHERE genre = 'hiphop';
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Delete sessions with session_duration less than 1 hour
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CREATE TABLE game_sessions (session_id INT,player_id INT,session_start_time TIMESTAMP,session_duration INTERVAL);
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DELETE FROM game_sessions WHERE session_duration < '01:00:00';
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What is the total number of marine species observed in the Pacific region?
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CREATE TABLE marine_species (name varchar(255),region varchar(255),observations int); INSERT INTO marine_species (name,region,observations) VALUES ('Blue Whale','Pacific',3000),('Hammerhead Shark','Pacific',1500),('Sea Otter','Pacific',2000);
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SELECT SUM(observations) FROM marine_species WHERE region = 'Pacific';
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How many mental health support sessions were conducted by teachers from underrepresented communities in each department?
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CREATE TABLE departments (department_id INT,department_name TEXT); CREATE TABLE teachers (teacher_id INT,teacher_name TEXT,department_id INT,community_representation TEXT); CREATE TABLE sessions (session_id INT,teacher_id INT,session_date DATE,support_type TEXT); INSERT INTO departments VALUES (1,'Mathematics'),(2,'Science'),(3,'English'); INSERT INTO teachers VALUES (1,'Ms. Acevedo',1,'underrepresented'),(2,'Mr. Chen',2,'mainstream'),(3,'Mx. Patel',3,'underrepresented'); INSERT INTO sessions VALUES (1,1,'2022-02-01','mental health'),(2,2,'2022-02-02','academic'),(3,3,'2022-02-03','mental health');
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SELECT d.department_name, COUNT(s.session_id) FROM departments d INNER JOIN teachers t ON d.department_id = t.department_id INNER JOIN sessions s ON t.teacher_id = s.teacher_id WHERE t.community_representation = 'underrepresented' AND s.support_type = 'mental health' GROUP BY d.department_id;
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List the species and maximum depth for deep-sea fish found in the Indian Ocean.
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CREATE TABLE deep_sea_fish (species VARCHAR(255),ocean VARCHAR(255),max_depth INT); INSERT INTO deep_sea_fish (species,ocean,max_depth) VALUES ('Anglerfish','Indian Ocean',3000);
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SELECT species, max_depth FROM deep_sea_fish WHERE ocean = 'Indian Ocean'
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What is the difference in crop yield between organic and non-organic farming methods in India?
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CREATE TABLE CropYield (region VARCHAR(255),farming_method VARCHAR(255),yield INT); INSERT INTO CropYield (region,farming_method,yield) VALUES ('India','Organic',100),('India','Non-Organic',120),('China','Organic',110),('China','Non-Organic',130);
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SELECT farming_method, AVG(yield) FROM CropYield WHERE region = 'India' GROUP BY farming_method;
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List the names of all startups that have received funding in the last 3 years
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CREATE TABLE funding_data (company_name VARCHAR(100),funding_year INT,funding_amount INT);
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SELECT company_name FROM funding_data WHERE funding_year >= (YEAR(CURRENT_DATE) - 3);
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Calculate the average funding for biotech startups in the USA and Canada.
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CREATE SCHEMA if not exists startup_funding;CREATE TABLE if not exists startup_funding.data (id INT,startup VARCHAR(50),country VARCHAR(50),funding DECIMAL(10,2)); INSERT INTO startup_funding.data (id,startup,country,funding) VALUES (1,'StartupA','USA',1500000.00),(2,'StartupB','USA',2000000.00),(3,'StartupC','Canada',1000000.00),(4,'StartupD','Canada',1250000.00),(5,'StartupE','Mexico',750000.00);
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SELECT country, AVG(funding) FROM startup_funding.data WHERE country IN ('USA', 'Canada') GROUP BY country;
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What is the total number of minutes spent working out by users in their 30s?
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CREATE TABLE workout_minutes (user_id INT,age INT,workout_minutes INT); INSERT INTO workout_minutes (user_id,age,workout_minutes) VALUES (1,32,120),(2,28,150),(3,35,180),(4,31,240);
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SELECT SUM(workout_minutes) FROM workout_minutes WHERE age BETWEEN 30 AND 39;
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What is the maximum number of traffic violations in the "TrafficViolations" table, per type of violation, for violations that occurred in school zones?
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CREATE TABLE TrafficViolations (id INT,violation_type VARCHAR(50),location VARCHAR(50),fine DECIMAL(5,2)); INSERT INTO TrafficViolations (id,violation_type,location,fine) VALUES (1,'Speeding','School Zone',100),(2,'Illegal Parking','Business District',50),(3,'Speeding','Residential Area',30),(4,'Running Red Light','School Zone',150),(5,'Speeding','School Zone',200);
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SELECT violation_type, COUNT(*) as num_violations FROM TrafficViolations WHERE location LIKE '%School%' GROUP BY violation_type;
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What is the average funding amount per company, and the company with the highest average funding?
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CREATE TABLE Company (id INT,name VARCHAR(50)); INSERT INTO Company (id,name) VALUES (1,'Acme Inc'); INSERT INTO Company (id,name) VALUES (2,'Beta Corp'); INSERT INTO Company (id,name) VALUES (3,'Gamma Startup'); CREATE TABLE Funding (company_id INT,funding_amount INT,funding_date DATE); INSERT INTO Funding (company_id,funding_amount,funding_date) VALUES (1,5000000,'2012-01-01'); INSERT INTO Funding (company_id,funding_amount,funding_date) VALUES (1,10000000,'2016-01-01'); INSERT INTO Funding (company_id,funding_amount,funding_date) VALUES (2,2000000,'2016-05-10'); INSERT INTO Funding (company_id,funding_amount,funding_date) VALUES (3,8000000,'2019-04-20');
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SELECT c.name, AVG(f.funding_amount) as avg_funding, RANK() OVER (ORDER BY AVG(f.funding_amount) DESC) as rank FROM Company c JOIN Funding f ON c.id = f.company_id GROUP BY c.name;
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What is the total value of assets held by the bank in each country?
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CREATE TABLE assets (id INT,country VARCHAR(50),value DECIMAL(10,2)); INSERT INTO assets (id,country,value) VALUES (1,'USA',1000000.00),(2,'Canada',500000.00),(3,'Mexico',300000.00);
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SELECT country, SUM(value) FROM assets GROUP BY country;
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What is the total number of military vehicles and their corresponding types, along with the country responsible for manufacturing them?
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CREATE TABLE military_vehicles (id INT,name VARCHAR(255),country_code VARCHAR(3),vehicle_type VARCHAR(255)); CREATE TABLE countries (code VARCHAR(3),name VARCHAR(255)); INSERT INTO military_vehicles (id,name,country_code,vehicle_type) VALUES (1,'Vehicle A','USA','Tank'),(2,'Vehicle B','RUS','Aircraft'),(3,'Vehicle C','CHN','Ship'); INSERT INTO countries (code,name) VALUES ('USA','United States of America'),('RUS','Russian Federation'),('CHN','People''s Republic of China');
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SELECT COUNT(id) as total_vehicles, v.vehicle_type, c.name as country_name FROM military_vehicles v JOIN countries c ON v.country_code = c.code GROUP BY v.vehicle_type, c.name;
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What is the maximum production capacity of Erbium mines in Australia?
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CREATE TABLE erbium_mines (mine VARCHAR(50),country VARCHAR(50),capacity INT);
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SELECT MAX(capacity) FROM erbium_mines WHERE country = 'Australia';
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What is the total salary paid by each factory?
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CREATE TABLE factories (factory_id INT,factory_name VARCHAR(20)); INSERT INTO factories VALUES (1,'Factory A'),(2,'Factory B'),(3,'Factory C'); CREATE TABLE workers (worker_id INT,factory_id INT,salary DECIMAL(5,2)); INSERT INTO workers VALUES (1,1,35000.00),(2,1,36000.00),(3,2,45000.00),(4,3,34000.00);
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SELECT f.factory_name, SUM(salary) FROM workers w INNER JOIN factories f ON w.factory_id = f.factory_id GROUP BY f.factory_name;
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List the number of times each crop type was harvested in the 'Western' region in 2021.
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CREATE TABLE HarvestData (id INT,region VARCHAR(255),crop_type VARCHAR(255),harvest_date DATE);
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SELECT region, crop_type, COUNT(DISTINCT harvest_date) FROM HarvestData WHERE region = 'Western' AND YEAR(harvest_date) = 2021 GROUP BY region, crop_type;
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How many artists from each country released an album in 2020?
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CREATE TABLE Country (id INT,country VARCHAR(255)); CREATE TABLE Artist (id INT,country_id INT,name VARCHAR(255)); CREATE TABLE Album (id INT,artist_id INT,year INT);
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SELECT C.country, COUNT(DISTINCT A.artist_id) as album_count FROM Country C INNER JOIN Artist A ON C.id = A.country_id INNER JOIN Album AL ON A.id = AL.artist_id WHERE AL.year = 2020 GROUP BY C.country;
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What is the total biomass of krill in the Arctic Ocean?
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CREATE TABLE Biomass (species VARCHAR(255),ocean VARCHAR(255),biomass FLOAT); INSERT INTO Biomass (species,ocean,biomass) VALUES ('Krill','Arctic Ocean',2.1); INSERT INTO Biomass (species,ocean,biomass) VALUES ('Krill','Arctic Ocean',1.9);
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SELECT SUM(biomass) FROM Biomass WHERE species = 'Krill' AND ocean = 'Arctic Ocean';
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Show the top 5 oldest policyholders by age.
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CREATE TABLE Policyholders (PolicyholderID INT,Name VARCHAR(50),Age INT,Gender VARCHAR(10),State VARCHAR(2)); INSERT INTO Policyholders (PolicyholderID,Name,Age,Gender,State) VALUES (1,'Aisha Brown',68,'Female','NY'); INSERT INTO Policyholders (PolicyholderID,Name,Age,Gender,State) VALUES (2,'Brian Green',55,'Male','CA'); INSERT INTO Policyholders (PolicyholderID,Name,Age,Gender,State) VALUES (3,'Charlotte Lee',72,'Female','FL');
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SELECT * FROM Policyholders ORDER BY Age DESC LIMIT 5;
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How many biosensor technology projects were completed in Q2 2021?
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CREATE SCHEMA if not exists biotech;CREATE TABLE if not exists biotech.projects (id INT,name VARCHAR(100),status VARCHAR(20),completion_date DATE); INSERT INTO biotech.projects (id,name,status,completion_date) VALUES (1,'Project1','Completed','2021-04-15'),(2,'Project2','In Progress','2021-07-20'),(3,'Project3','Completed','2021-06-30');
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SELECT COUNT(*) FROM biotech.projects WHERE status = 'Completed' AND completion_date BETWEEN '2021-04-01' AND '2021-06-30';
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What is the average cost of a space mission over the last 10 years?
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CREATE TABLE space_missions_cost (year INT,cost FLOAT); INSERT INTO space_missions_cost (year,cost) VALUES (2012,5000000),(2013,6000000),(2014,7000000),(2015,8000000),(2016,9000000),(2017,10000000),(2018,11000000),(2019,12000000),(2020,13000000),(2021,14000000);
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SELECT AVG(cost) FROM space_missions_cost WHERE year BETWEEN 2012 AND 2021;
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What is the maximum billing amount for cases in the 'Western' region?
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CREATE TABLE cases (id INT,region VARCHAR(10),billing_amount INT); INSERT INTO cases (id,region,billing_amount) VALUES (1,'Eastern',5000),(2,'Western',7000),(3,'Eastern',6000),(4,'Western',9000);
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SELECT MAX(billing_amount) FROM cases WHERE region = 'Western';
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What is the minimum depth of the deepest oceanographic areas?
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CREATE TABLE Oceanography (id INT PRIMARY KEY,location VARCHAR(255),depth FLOAT,salinity FLOAT); INSERT INTO Oceanography (id,location,depth,salinity) VALUES (1,'Pacific Ocean Trench',10000,35),(2,'Southern Ocean',7000,34);
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SELECT location, MIN(depth) FROM Oceanography WHERE depth < 8000;
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What vehicles passed the 'Pedestrian Safety Test' in the SafetyTesting table?
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CREATE TABLE SafetyTesting (Id INT,Vehicle VARCHAR(50),Test VARCHAR(50),Result VARCHAR(50)); INSERT INTO SafetyTesting (Id,Vehicle,Test,Result) VALUES (1,'Volvo XC60','Frontal Crash Test','Passed'),(2,'Nissan Leaf','Pedestrian Safety Test','Passed');
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SELECT Vehicle FROM SafetyTesting WHERE Test = 'Pedestrian Safety Test' AND Result = 'Passed';
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Identify the unique soil types analyzed in vineyards located in South Africa.
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CREATE TABLE vineyard_soil_analysis (id INT,location VARCHAR(255),soil_type VARCHAR(255)); INSERT INTO vineyard_soil_analysis (id,location,soil_type) VALUES (1,'South Africa-Stellenbosch','loam'),(2,'South Africa-Franschhoek','clay'),(3,'South Africa-Stellenbosch','sand'),(4,'South Africa-Paarl','loam');
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SELECT DISTINCT soil_type FROM vineyard_soil_analysis WHERE location LIKE '%South Africa%';
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What is the total revenue for lipstick products in the organic category?
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CREATE TABLE cosmetics_sales (product_category VARCHAR(20),product_type VARCHAR(20),is_organic BOOLEAN,revenue DECIMAL(10,2)); INSERT INTO cosmetics_sales (product_category,product_type,is_organic,revenue) VALUES ('Makeup','Lipstick',true,5000),('Makeup','Lipstick',false,7000),('Makeup','Foundation',true,8000),('Makeup','Mascara',false,6000);
|
SELECT SUM(revenue) FROM cosmetics_sales WHERE product_type = 'Lipstick' AND is_organic = true;
|
What is the total grant amount awarded to female faculty members in the Computer Science department in the last 3 years?
|
CREATE SCHEMA if not exists higher_ed;CREATE TABLE if not exists higher_ed.faculty(id INT,name VARCHAR(255),department VARCHAR(255),grant_amount DECIMAL(10,2),grant_date DATE,gender VARCHAR(10));
|
SELECT SUM(grant_amount) FROM higher_ed.faculty WHERE department = 'Computer Science' AND gender = 'Female' AND grant_date >= DATE_SUB(CURRENT_DATE, INTERVAL 3 YEAR);
|
What is the total amount of donations received by each NGO, grouped by category?
|
CREATE TABLE ngo_donations (ngo_id INT,donation_amount FLOAT,donation_year INT,ngo_category VARCHAR(255)); INSERT INTO ngo_donations (ngo_id,donation_amount,donation_year,ngo_category) VALUES (1,50000,2019,'Health'),(2,75000,2020,'Education'),(3,30000,2018,'Health'),(4,100000,2020,'Education'); CREATE TABLE ngo_categories (ngo_category_id INT,ngo_category VARCHAR(255)); INSERT INTO ngo_categories (ngo_category_id,ngo_category) VALUES (1,'Health'),(2,'Education'),(3,'Housing');
|
SELECT ngo_category, SUM(donation_amount) as total_donations FROM ngo_donations INNER JOIN ngo_categories ON ngo_donations.ngo_category = ngo_categories.ngo_category GROUP BY ngo_category;
|
What is the age of the second-oldest artifact at each excavation site?
|
CREATE TABLE ancient_artifacts (id INT,artifact_name VARCHAR(50),age INT,excavation_site VARCHAR(50));
|
SELECT excavation_site, LEAD(age) OVER (PARTITION BY excavation_site ORDER BY age) as second_oldest_artifact_age FROM ancient_artifacts;
|
What is the total number of suppliers in each country, and the number of suppliers with environmental certifications for each country?
|
CREATE TABLE suppliers (id INT PRIMARY KEY,name VARCHAR(255),location VARCHAR(255),environmental_certification VARCHAR(255)); INSERT INTO suppliers (id,name,location,environmental_certification) VALUES (1,'Supplier A','Germany','ISO 14001'),(2,'Supplier B','Brazil','ISO 14001'),(3,'Supplier C','Japan',NULL),(4,'Supplier D','Canada','ISO 14001');
|
SELECT location as country, COUNT(*) as total_suppliers, SUM(CASE WHEN environmental_certification IS NOT NULL THEN 1 ELSE 0 END) as certified_suppliers FROM suppliers GROUP BY location;
|
Find the total energy production (in MWh) from renewable energy sources for each state in the renewable_energy_production table.
|
CREATE TABLE renewable_energy_production (state VARCHAR(50),year INT,energy_production FLOAT,energy_source VARCHAR(50));
|
SELECT state, SUM(energy_production) as total_renewable_energy FROM renewable_energy_production WHERE energy_source = 'Wind' OR energy_source = 'Solar' GROUP BY state;
|
What is the total number of shipments made by vendor X in March 2021?
|
CREATE TABLE shipments (id INT,vendor VARCHAR(50),ship_date DATE); INSERT INTO shipments (id,vendor,ship_date) VALUES (1,'Vendor X','2021-03-01'); INSERT INTO shipments (id,vendor,ship_date) VALUES (2,'Vendor Y','2021-03-05');
|
SELECT COUNT(*) FROM shipments WHERE vendor = 'Vendor X' AND EXTRACT(MONTH FROM ship_date) = 3 AND EXTRACT(YEAR FROM ship_date) = 2021;
|
What is the average monthly rainfall at each mine location?
|
CREATE TABLE mine (id INT,name TEXT,location TEXT); INSERT INTO mine (id,name,location) VALUES (1,'Golden Mine','USA'),(2,'Silver Mine','Canada'); CREATE TABLE weather (id INT,mine_id INT,date DATE,rainfall REAL); INSERT INTO weather (id,mine_id,date,rainfall) VALUES (1,1,'2022-01-01',30),(2,1,'2022-02-01',40),(3,1,'2022-03-01',50),(4,2,'2022-01-01',60),(5,2,'2022-02-01',70),(6,2,'2022-03-01',80);
|
SELECT mine_id, AVG(rainfall) as avg_rainfall FROM weather GROUP BY mine_id;
|
What are the names and total budgets for bills related to education and health with a budget over 500000 dollars?
|
CREATE TABLE Bills (BillID INT,Department VARCHAR(50),Amount FLOAT);
|
SELECT Bills.Department, SUM(Bills.Amount) AS TotalBudget FROM Bills WHERE Bills.Department IN ('Education', 'Health') AND Bills.Amount > 500000 GROUP BY Bills.Department;
|
What is the maximum monthly salary in the 'Construction Workers Union'?
|
CREATE TABLE union_members (member_id INT,member_name VARCHAR(255),union_id INT,monthly_salary DECIMAL(10,2)); CREATE TABLE unions (union_id INT,union_name VARCHAR(255)); INSERT INTO unions (union_id,union_name) VALUES (123,'Transportation Workers Union'); INSERT INTO unions (union_id,union_name) VALUES (456,'Construction Workers Union'); INSERT INTO union_members (member_id,member_name,union_id,monthly_salary) VALUES (1,'John Doe',456,4000.50); INSERT INTO union_members (member_id,member_name,union_id,monthly_salary) VALUES (2,'Jane Doe',456,4500.25);
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SELECT MAX(monthly_salary) FROM union_members WHERE union_id = (SELECT union_id FROM unions WHERE union_name = 'Construction Workers Union');
|
Compare the drought-impacted areas between 'East' and 'West' regions.
|
CREATE TABLE drought_impact (area VARCHAR(255),region VARCHAR(255),population INT); INSERT INTO drought_impact (area,region,population) VALUES ('City A','East',600000),('City B','East',700000),('City C','East',500000),('City D','West',800000),('City E','West',900000),('City F','West',750000);
|
SELECT region, COUNT(*) FROM drought_impact GROUP BY region;
|
Find the total revenue for digital and physical sales for the year 2020.
|
CREATE TABLE Sales (SaleID INT,SaleDate DATE,SaleType VARCHAR(10),Revenue DECIMAL(10,2)); INSERT INTO Sales (SaleID,SaleDate,SaleType,Revenue) VALUES (1,'2020-01-01','Digital',1000); INSERT INTO Sales (SaleID,SaleDate,SaleType,Revenue) VALUES (2,'2020-02-01','Physical',2000);
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SELECT SUM(Revenue) FROM Sales WHERE SaleDate BETWEEN '2020-01-01' AND '2020-12-31' AND SaleType IN ('Digital', 'Physical');
|
Find the total number of marine species in each ocean.
|
CREATE TABLE marine_species (species_id INTEGER,species_name VARCHAR(255),ocean VARCHAR(50)); CREATE TABLE oceanography (ocean_id INTEGER,ocean_name VARCHAR(50),total_area FLOAT);
|
SELECT ocean, COUNT(species_id) FROM marine_species GROUP BY ocean;
|
What is the total number of accessibility-related staff hires in Q2 and Q3 of 2022?
|
CREATE TABLE StaffHires (hire_date DATE,staff_type VARCHAR(255)); INSERT INTO StaffHires (hire_date,staff_type) VALUES ('2022-04-05','Accessibility Specialist'); INSERT INTO StaffHires (hire_date,staff_type) VALUES ('2022-08-10','Accessibility Coordinator');
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SELECT SUM(total_hires) as q2_q3_hires FROM (SELECT CASE WHEN hire_date BETWEEN '2022-04-01' AND LAST_DAY('2022-06-30') THEN 1 WHEN hire_date BETWEEN '2022-07-01' AND LAST_DAY('2022-09-30') THEN 1 ELSE 0 END as total_hires FROM StaffHires) AS subquery;
|
What is the name and budget of the public university with the largest budget in Oregon?
|
CREATE TABLE public_universities (name TEXT,budget INTEGER,state TEXT); INSERT INTO public_universities (name,budget,state) VALUES ('University1',100000,'Oregon'),('University2',120000,'Oregon'),('University3',90000,'Oregon');
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SELECT name, budget FROM public_universities WHERE state = 'Oregon' ORDER BY budget DESC LIMIT 1;
|
What is the number of cases for each attorney and their respective success rates?
|
CREATE TABLE attorneys (attorney_id INT,name TEXT); CREATE TABLE cases (case_id INT,attorney_id INT,won BOOLEAN);
|
SELECT a.attorney_id, a.name, COUNT(c.case_id) AS cases_handled, AVG(CASE WHEN won THEN 1.0 ELSE 0.0 END) * 100.0 AS success_rate FROM attorneys a JOIN cases c ON a.attorney_id = c.attorney_id GROUP BY a.attorney_id, a.name;
|
What is the average budget allocated for education in urban areas?
|
CREATE TABLE district (id INT,name VARCHAR(50),type VARCHAR(50)); INSERT INTO district (id,name,type) VALUES (1,'City A','urban'),(2,'Town B','urban'),(3,'Village C','rural'); CREATE TABLE budget (district_id INT,category VARCHAR(50),amount INT); INSERT INTO budget (district_id,category,amount) VALUES (1,'education',500000),(1,'healthcare',300000),(2,'education',350000),(2,'healthcare',400000),(3,'education',200000),(3,'healthcare',500000);
|
SELECT AVG(amount) FROM budget WHERE category = 'education' AND district_id IN (SELECT id FROM district WHERE type = 'urban');
|
Find the total volume of timber sold by mills located in 'Region A' or 'Region B'.
|
CREATE TABLE MillSales(mill_name TEXT,sale_volume INT,region TEXT); INSERT INTO MillSales (mill_name,sale_volume,region) VALUES ('Mill X',500,'Region A'),('Mill Y',350,'Region B'),('Mill Z',700,'Region A');
|
SELECT SUM(sale_volume) FROM MillSales WHERE region IN ('Region A', 'Region B');
|
What is the total water usage by mine site in 2021?
|
CREATE TABLE water_usage (site_id INT,site_name TEXT,month INT,year INT,water_usage INT); INSERT INTO water_usage (site_id,site_name,month,year,water_usage) VALUES (1,'ABC Mine',3,2021,15000),(2,'DEF Mine',5,2021,20000),(3,'GHI Mine',1,2022,25000),(1,'ABC Mine',4,2021,17000),(2,'DEF Mine',6,2021,18000);
|
SELECT site_name, SUM(water_usage) as total_water_usage_2021 FROM water_usage WHERE year = 2021 GROUP BY site_name;
|
What is the total weight of sustainable materials used in each production facility?
|
CREATE TABLE Production_Facilities (facility_id INT,facility_name VARCHAR(50),sustainable_material_weight FLOAT);
|
SELECT Production_Facilities.facility_name, SUM(Production_Facilities.sustainable_material_weight) as total_weight FROM Production_Facilities GROUP BY Production_Facilities.facility_name;
|
Update the 'launch_site' for the 'Mars_2023' satellite mission to 'Cape Canaveral' in the 'satellite_deployment' table.
|
CREATE TABLE satellite_deployment (mission VARCHAR(50),launch_site VARCHAR(50)); INSERT INTO satellite_deployment (mission,launch_site) VALUES ('Mars_2020','Vandenberg'),('Mars_2022','Cape_Canaveral'),('Mars_2023','Kennedy_Space_Center');
|
UPDATE satellite_deployment SET launch_site = 'Cape_Canaveral' WHERE mission = 'Mars_2023';
|
What is the total number of trips taken in autonomous vehicles in Singapore?
|
CREATE TABLE autonomous_vehicles (vehicle_id int,city varchar(20),trips int); INSERT INTO autonomous_vehicles (vehicle_id,city,trips) VALUES (1,'Singapore',235),(2,'Singapore',345),(3,'Singapore',456);
|
SELECT SUM(trips) FROM autonomous_vehicles WHERE city = 'Singapore';
|
What is the total revenue of all R-rated movies?
|
CREATE TABLE Movies (id INT,title VARCHAR(255),rating VARCHAR(10),revenue INT);
|
SELECT SUM(revenue) FROM Movies WHERE rating = 'R';
|
Update 'Age' column in 'Students' table to 16 for StudentId 1001
|
CREATE TABLE Students (StudentId INT,Name VARCHAR(50),Age INT); INSERT INTO Students (StudentId,Name,Age) VALUES (1001,'John Doe',16); CREATE VIEW StudentNames AS SELECT * FROM Students;
|
UPDATE Students SET Age = 16 WHERE StudentId = 1001;
|
List the total gold exports and mercury emissions from Ghana and Mali between 2016 and 2018.
|
CREATE TABLE ghana_gold_export (year INT,export_amount FLOAT); INSERT INTO ghana_gold_export (year,export_amount) VALUES (2016,2000.0),(2017,2100.0),(2018,2200.0); CREATE TABLE mali_gold_export (year INT,export_amount FLOAT); INSERT INTO mali_gold_export (year,export_amount) VALUES (2016,1500.0),(2017,1600.0),(2018,1700.0); CREATE TABLE ghana_mercury_emission (year INT,emission FLOAT); INSERT INTO ghana_mercury_emission (year,emission) VALUES (2016,10.0),(2017,11.0),(2018,12.0); CREATE TABLE mali_mercury_emission (year INT,emission FLOAT); INSERT INTO mali_mercury_emission (year,emission) VALUES (2016,8.0),(2017,9.0),(2018,10.0);
|
SELECT 'Ghana' AS country, SUM(ghana_gold_export.export_amount) AS gold_export, SUM(ghana_mercury_emission.emission) AS mercury_emission FROM ghana_gold_export INNER JOIN ghana_mercury_emission ON ghana_gold_export.year = ghana_mercury_emission.year WHERE ghana_gold_export.year BETWEEN 2016 AND 2018 UNION ALL SELECT 'Mali', SUM(mali_gold_export.export_amount), SUM(mali_mercury_emission.emission) FROM mali_gold_export INNER JOIN mali_mercury_emission ON mali_gold_export.year = mali_mercury_emission.year WHERE mali_gold_export.year BETWEEN 2016 AND 2018;
|
How many traffic accidents were reported in Texas in the past year?
|
CREATE TABLE accidents (id INT,report_date DATE,city TEXT,type TEXT); INSERT INTO accidents (id,report_date,city,type) VALUES (1,'2022-01-01','Houston','minor');
|
SELECT COUNT(*) FROM accidents WHERE accidents.report_date >= DATE_SUB(CURRENT_DATE, INTERVAL 1 YEAR) AND accidents.city IN (SELECT cities.name FROM cities WHERE cities.state = 'Texas');
|
Which union represents the company with the most workplace safety violations?
|
CREATE TABLE unions (id INT,name VARCHAR(50)); INSERT INTO unions (id,name) VALUES (1,'Union A'),(2,'Union B'),(3,'Union C'); CREATE TABLE companies (id INT,name VARCHAR(50),union_id INT,safety_violations INT); INSERT INTO companies (id,name,union_id,safety_violations) VALUES (1,'Company X',1,10),(2,'Company Y',2,5),(3,'Company Z',3,15),(4,'Company W',1,0),(5,'Company V',3,20);
|
SELECT unions.name, MAX(companies.safety_violations) FROM unions JOIN companies ON unions.id = companies.union_id GROUP BY unions.name ORDER BY MAX(companies.safety_violations) DESC LIMIT 1;
|
Delete all records from the military equipment table that are older than 10 years
|
CREATE TABLE military_equipment (equipment_type VARCHAR(255),purchase_date DATE); INSERT INTO military_equipment (equipment_type,purchase_date) VALUES ('Tank','2011-01-01'),('Jet','2012-01-01'),('Submarine','2005-01-01');
|
DELETE FROM military_equipment WHERE purchase_date < '2011-01-01';
|
Which vendors have the highest average maintenance costs for military equipment, and the number of different equipment types maintained by these vendors?
|
CREATE TABLE Equipment (EID INT,Type VARCHAR(50),VendorID INT,MaintenanceCost INT); INSERT INTO Equipment (EID,Type,VendorID,MaintenanceCost) VALUES (1,'Tank',1,10000),(2,'Fighter Jet',1,20000),(3,'Helicopter',2,15000); CREATE TABLE Vendors (VID INT,Name VARCHAR(100)); INSERT INTO Vendors (VID,Name) VALUES (1,'Raytheon Technologies'),(2,'BAE Systems');
|
SELECT v.Name, AVG(Equipment.MaintenanceCost) as AvgMaintenanceCost, COUNT(DISTINCT Equipment.Type) as NumEquipmentTypes FROM Equipment JOIN Vendors v ON Equipment.VendorID = v.VID GROUP BY v.Name ORDER BY AvgMaintenanceCost DESC;
|
Which country has the most female players?
|
CREATE TABLE Players (PlayerID INT PRIMARY KEY,Age INT,Gender VARCHAR(10),Country VARCHAR(50)); INSERT INTO Players (PlayerID,Age,Gender,Country) VALUES (6,28,'Female','France'),(7,30,'Male','Germany'),(8,24,'Female','France'),(9,22,'Male','Canada'),(10,32,'Female','USA');
|
SELECT Country, COUNT(*) FROM Players WHERE Gender = 'Female' GROUP BY Country ORDER BY COUNT(*) DESC LIMIT 1;
|
What is the average salary for workers in the manufacturing sector in France and Germany?
|
CREATE TABLE worker_salaries (employee_id INT,country VARCHAR(50),sector VARCHAR(50),salary FLOAT);
|
SELECT AVG(salary) FROM worker_salaries WHERE country IN ('France', 'Germany') AND sector = 'Manufacturing';
|
List all unique modes of transportation and their associated average costs for freight forwarding in the Asia-Pacific region.
|
CREATE TABLE Transportation (id INT,mode TEXT,type TEXT,cost FLOAT); INSERT INTO Transportation (id,mode,type,cost) VALUES (1,'Sea','Full Container Load',1500),(2,'Air','Express',5000),(3,'Rail','Less than Container Load',800);
|
SELECT DISTINCT mode, AVG(cost) FROM Transportation WHERE type = 'Full Container Load' AND country IN ('Asia', 'Pacific') GROUP BY mode;
|
Which TV shows have the highest average rating per season in the horror genre?
|
CREATE TABLE tv_shows (id INT,title VARCHAR(255),season INT,genre VARCHAR(255),rating DECIMAL(3,2)); INSERT INTO tv_shows (id,title,season,genre,rating) VALUES (1,'TVShow1',1,'Horror',8.2),(2,'TVShow1',2,'Horror',8.5),(3,'TVShow2',1,'Horror',7.8),(4,'TVShow2',2,'Horror',8.0),(5,'TVShow3',1,'Comedy',9.0),(6,'TVShow3',2,'Comedy',8.8);
|
SELECT title, AVG(rating) AS avg_rating FROM tv_shows WHERE genre = 'Horror' GROUP BY title ORDER BY avg_rating DESC;
|
What is the average playtime of players who use VR technology?
|
CREATE TABLE Players (PlayerID INT,Age INT,Gender VARCHAR(10),Playtime INT,VR INT); INSERT INTO Players (PlayerID,Age,Gender,Playtime,VR) VALUES (1,25,'Male',10,1); INSERT INTO Players (PlayerID,Age,Gender,Playtime,VR) VALUES (2,30,'Female',15,1); CREATE TABLE VRPlayers (PlayerID INT); INSERT INTO VRPlayers (PlayerID) VALUES (1); INSERT INTO VRPlayers (PlayerID) VALUES (2);
|
SELECT AVG(Players.Playtime) FROM Players INNER JOIN VRPlayers ON Players.PlayerID = VRPlayers.PlayerID;
|
What is the minimum number of deep-sea species observed in a single expedition in the Southern Ocean?
|
CREATE TABLE deep_sea_expeditions (id INT,expedition_name VARCHAR(255),year INT,country VARCHAR(255),region VARCHAR(255),num_species INT); INSERT INTO deep_sea_expeditions (id,expedition_name,year,country,region,num_species) VALUES (1,'Antarctic Circumnavigation Expedition',2016,'Australia','Southern',345),(2,'Southern Ocean Deep-Sea Expedition',2017,'New Zealand','Southern',567);
|
SELECT MIN(num_species) FROM deep_sea_expeditions WHERE region = 'Southern';
|
Which genes are involved in the 'pathway1'?
|
CREATE TABLE GenePathways (gene_id INT,gene_name TEXT,pathway TEXT); INSERT INTO GenePathways (gene_id,gene_name,pathway) VALUES (1,'GeneA','pathway1'),(2,'GeneB','pathway2'),(3,'GeneC','pathway1');
|
SELECT gene_name FROM GenePathways WHERE pathway = 'pathway1';
|
How many roundabouts have been built in Texas since 2010?
|
CREATE TABLE Intersection (id INT,name TEXT,location TEXT,type TEXT,build_date DATE); INSERT INTO Intersection (id,name,location,type,build_date) VALUES (1,'Dallas Circle','Dallas,TX','Roundabout','2012-05-01');
|
SELECT COUNT(*) FROM Intersection WHERE location LIKE '%TX%' AND type = 'Roundabout' AND build_date >= '2010-01-01';
|
What is the total area of fields in the "loamy" soil type category, grouped by the region?
|
CREATE TABLE fields (id INT,field_name VARCHAR(255),area FLOAT,soil_type VARCHAR(255),region VARCHAR(255)); INSERT INTO fields (id,field_name,area,soil_type,region) VALUES (1,'field1',10.5,'loamy','Northeast'),(2,'field2',12.3,'sandy','South'),(3,'field3',8.9,'loamy','Northeast'),(4,'field4',15.7,'clay','Midwest');
|
SELECT region, SUM(area) FROM fields WHERE soil_type = 'loamy' GROUP BY region;
|
How many artworks were created per year by artists in the 'ArtCollection' table?
|
CREATE TABLE ArtCollection (ArtworkID INT,ArtistID INT,ArtworkYear INT); INSERT INTO ArtCollection (ArtworkID,ArtistID,ArtworkYear) VALUES (1,1,1880),(2,1,1885),(3,2,1890),(4,2,1895),(5,3,1890),(6,3,1895),(7,4,1940),(8,4,1945),(9,5,1790),(10,5,1795);
|
SELECT ArtworkYear, COUNT(*) AS ArtworksPerYear FROM ArtCollection GROUP BY ArtworkYear;
|
What is the average age of readers who prefer news on 'politics'?
|
CREATE TABLE readers (id INT,name VARCHAR(20),age INT,favorite_category VARCHAR(20)); INSERT INTO readers (id,name,age,favorite_category) VALUES (1,'John Doe',35,'politics'),(2,'Jane Smith',40,'business');
|
SELECT AVG(age) FROM readers WHERE favorite_category = 'politics';
|
List all the machines that have usage hours greater than 100 and their last maintenance date.
|
CREATE TABLE machine_maintenance_new3 (id INT PRIMARY KEY,machine_name VARCHAR(50),last_maintenance_date DATE); CREATE TABLE machine_usage_new3 (id INT PRIMARY KEY,machine_name VARCHAR(50),usage_hours INT);
|
SELECT m.machine_name, m.last_maintenance_date FROM machine_maintenance_new3 m INNER JOIN machine_usage_new3 u ON m.machine_name = u.machine_name WHERE u.usage_hours > 100;
|
What is the average yield for each crop type in the 'agriculture' database, grouped by crop type, for farms that use sustainable practices?
|
CREATE TABLE crop (id INT,type VARCHAR(255),region VARCHAR(255),yield FLOAT,sustainability VARCHAR(255)); INSERT INTO crop (id,type,region,yield,sustainability) VALUES (1,'corn','Midwest',150.3,'sustainable'),(2,'wheat','Great Plains',120.5,'non-sustainable'),(3,'rice','Southeast',180.7,'sustainable'),(4,'corn','Midwest',165.2,'sustainable'),(5,'corn','Northeast',145.8,'non-sustainable');
|
SELECT type, AVG(yield) as avg_yield FROM crop WHERE sustainability = 'sustainable' GROUP BY type;
|
What is the total population of animals in the 'habitat_preservation' region?
|
CREATE TABLE habitat_preservation (id INT,region VARCHAR(50),animal_name VARCHAR(50),population INT); INSERT INTO habitat_preservation (id,region,animal_name,population) VALUES (1,'Habitat Preservation','Tiger',1500),(2,'Habitat Preservation','Elephant',3000);
|
SELECT SUM(population) FROM habitat_preservation WHERE region = 'Habitat Preservation';
|
How many instances of disinformation were detected in blogs in South America in the last month?
|
CREATE TABLE disinformation_detections (id INT,date DATE,source VARCHAR(255),location VARCHAR(255)); INSERT INTO disinformation_detections (id,date,source,location) VALUES (4,'2023-02-01','Blog 1','South America'),(5,'2023-02-02','Blog 2','South America'),(6,'2023-02-03','Blog 3','South America');
|
SELECT COUNT(*) FROM disinformation_detections WHERE location = 'South America' AND source LIKE '%Blog%' AND date >= DATEADD(month, -1, GETDATE());
|
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