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Who are the female astronauts with the most missions for each agency?
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CREATE TABLE Astronauts (id INT,name VARCHAR(255),gender VARCHAR(10),agency VARCHAR(255),missions INT); INSERT INTO Astronauts (id,name,gender,agency,missions) VALUES (1,'Eileen Collins','Female','NASA',4),(2,'Yi So-yeon','Female','Korea Aerospace Research Institute',1);
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SELECT name, agency, missions, RANK() OVER (PARTITION BY agency ORDER BY missions DESC) as mission_rank FROM Astronauts WHERE gender = 'Female';
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Delete all cases from the 'criminal_cases' table where the case outcome is 'not guilty' and the attorney's ID is 458.
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CREATE TABLE criminal_cases (case_id INT PRIMARY KEY,client_name VARCHAR(255),attorney_id INT,case_outcome VARCHAR(50));
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DELETE FROM criminal_cases WHERE case_outcome = 'not guilty' AND attorney_id = 458;
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What is the total weight of items in the warehouse located in Tokyo?
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CREATE TABLE warehouses (id INT,location VARCHAR(255),weight INT); INSERT INTO warehouses (id,location,weight) VALUES (1,'Houston',1000),(2,'New York',2000),(3,'Tokyo',3000);
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SELECT SUM(weight) FROM warehouses WHERE location = 'Tokyo';
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What is the number of students who have a higher mental health score than the average mental health score of students who have not participated in lifelong learning activities?
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CREATE TABLE students (student_id INT,mental_health_score INT,participated_in_lifelong_learning BOOLEAN); INSERT INTO students (student_id,mental_health_score,participated_in_lifelong_learning) VALUES (1,80,FALSE),(2,70,FALSE),(3,90,TRUE),(4,60,FALSE);
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SELECT COUNT(*) FROM students s1 WHERE s1.mental_health_score > (SELECT AVG(s2.mental_health_score) FROM students s2 WHERE s2.participated_in_lifelong_learning = FALSE);
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What is the total quantity of garments sold per garment category?
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CREATE TABLE garment_sales (sales_id INT PRIMARY KEY,garment_id INT,store_id INT,quantity INT,price DECIMAL(5,2),date DATE); CREATE TABLE garments (garment_id INT PRIMARY KEY,garment_name TEXT,garment_category TEXT,sustainability_score INT); INSERT INTO garments (garment_id,garment_name,garment_category,sustainability_score) VALUES (1,'Cotton Shirt','Tops',80),(2,'Denim Jeans','Bottoms',60),(3,'Silk Scarf','Accessories',90);
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SELECT g.garment_category, SUM(gs.quantity) as total_quantity FROM garment_sales gs JOIN garments g ON gs.garment_id = g.garment_id GROUP BY g.garment_category;
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What is the maximum research grant amount awarded in the Engineering department?
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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));
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SELECT MAX(grant_amount) FROM higher_ed.faculty WHERE department = 'Engineering';
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What is the average property size in the sustainable_urbanism table?
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CREATE TABLE sustainable_urbanism (property_id INT,size FLOAT,location VARCHAR(255)); INSERT INTO sustainable_urbanism (property_id,size,location) VALUES (1,1200,'Eco City'),(2,1500,'Green Valley');
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SELECT AVG(size) FROM sustainable_urbanism;
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Insert a new astronaut 'Hiroshi Tanaka' from Japan.
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CREATE TABLE Astronauts (Astronaut_ID INT,Name VARCHAR(255),Country VARCHAR(255));
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INSERT INTO Astronauts (Name, Country) VALUES ('Hiroshi Tanaka', 'Japan');
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How many water conservation initiatives were implemented in Canada between 2015 and 2018?
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CREATE TABLE conservation_initiatives (country VARCHAR(20),start_year INT,end_year INT,num_initiatives INT); INSERT INTO conservation_initiatives (country,start_year,end_year,num_initiatives) VALUES ('Canada',2015,2018,120);
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SELECT num_initiatives FROM conservation_initiatives WHERE country = 'Canada' AND start_year <= 2018 AND end_year >= 2015;
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Which cruelty-free certified products use ingredients sourced from the UK and France?
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CREATE TABLE IngredientSources (ProductID INT,Ingredient VARCHAR(50),SourceCountry VARCHAR(50),PRIMARY KEY (ProductID,Ingredient)); INSERT INTO IngredientSources (ProductID,Ingredient,SourceCountry) VALUES (1,'Water','Canada'),(1,'Glycerin','UK'),(2,'Water','Mexico'),(2,'Glycerin','France'); CREATE TABLE CrueltyFreeCertifications (ProductID INT,CertificationDate DATE,Certifier VARCHAR(50),PRIMARY KEY (ProductID,CertificationDate)); INSERT INTO CrueltyFreeCertifications (ProductID,CertificationDate,Certifier) VALUES (1,'2020-12-01','Leaping Bunny'),(2,'2021-03-01','PETA');
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SELECT ProductID FROM IngredientSources WHERE SourceCountry IN ('UK', 'France') GROUP BY ProductID HAVING COUNT(DISTINCT SourceCountry) = 2 INTERSECT SELECT ProductID FROM CrueltyFreeCertifications;
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Calculate the average investment amount for companies in the 'renewable_energy' sector.
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CREATE TABLE investments (investment_id INT,company_id INT,sector VARCHAR(20),investment_amount FLOAT); INSERT INTO investments (investment_id,company_id,sector,investment_amount) VALUES (101,1,'renewable_energy',50000),(102,2,'sustainable_agriculture',75000),(103,3,'green_transportation',60000);
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SELECT AVG(investment_amount) FROM investments WHERE sector = 'renewable_energy';
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What is the number of students who have improved their mental health score by more than 10 points?
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CREATE TABLE student_mental_health_scores (student_id INT,mental_health_score INT,date DATE); INSERT INTO student_mental_health_scores (student_id,mental_health_score,date) VALUES (1,75,'2022-01-01'),(1,85,'2022-02-01'),(2,88,'2022-01-01'),(2,90,'2022-02-01'),(3,68,'2022-01-01'),(3,73,'2022-02-01'),(4,70,'2022-01-01'),(4,75,'2022-02-01'),(5,72,'2022-01-01'),(5,82,'2022-02-01');
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SELECT COUNT(DISTINCT student_id) as num_students_improved FROM (SELECT student_id, mental_health_score, LAG(mental_health_score) OVER (PARTITION BY student_id ORDER BY date) as previous_mental_health_score FROM student_mental_health_scores) subquery WHERE mental_health_score > previous_mental_health_score + 10;
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What is the total revenue of organic cotton products in the USA?
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CREATE TABLE OrganicCottonSales (product_id INT,product_name VARCHAR(255),sale_date DATE,revenue DECIMAL(10,2)); INSERT INTO OrganicCottonSales (product_id,product_name,sale_date,revenue) VALUES (1,'Organic Cotton T-Shirt','2021-01-02',25.99),(2,'Organic Cotton Hoodie','2021-01-03',49.99);
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SELECT SUM(revenue) FROM OrganicCottonSales WHERE sale_date BETWEEN '2021-01-01' AND '2021-12-31' AND product_name LIKE '%Organic Cotton%' AND country = 'USA';
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Update the ticket price of concert 'Rock the Bay' in 'ticket_sales' table to $120.
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CREATE TABLE ticket_sales (sale_id INT,user_id INT,concert_name VARCHAR(255),quantity INT,total_price DECIMAL(5,2),date_purchased DATE);
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UPDATE ticket_sales SET ticket_price = 120 WHERE concert_name = 'Rock the Bay';
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List the total quantity of garments sold, by size and gender, from the 'sales_data' view, for the month of April 2022.
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CREATE VIEW sales_data AS SELECT o.order_id,c.customer_gender,g.garment_size,g.garment_type,g.price,g.quantity,o.order_date FROM orders o JOIN customers c ON o.customer_id = c.customer_id JOIN order_items oi ON o.order_id = oi.order_id JOIN garments g ON oi.garment_id = g.garment_id;
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SELECT customer_gender, garment_size, SUM(quantity) FROM sales_data WHERE EXTRACT(MONTH FROM order_date) = 4 GROUP BY customer_gender, garment_size;
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What is the total amount of funding received by Indigenous art programs in Canada?
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CREATE TABLE funding (id INT,program VARCHAR(50),country VARCHAR(50),amount INT); INSERT INTO funding (id,program,country,amount) VALUES (1,'Indigenous Arts Program','Canada',50000);
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SELECT SUM(amount) FROM funding WHERE program = 'Indigenous Arts Program' AND country = 'Canada';
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What is the maximum ticket price for concerts in the 'Hip Hop' genre?
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CREATE TABLE ConcertGenre (ConcertID INT,GenreID INT); INSERT INTO ConcertGenre VALUES (7,3),(8,1),(9,2),(13,5);
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SELECT MAX(TicketPrice) FROM Concerts JOIN ConcertGenre ON Concerts.ConcertID = ConcertGenre.ConcertID JOIN Genre ON ConcertGenre.GenreID = Genre.GenreID WHERE Genre.Genre = 'Hip Hop';
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What is the total quantity of size 2XL clothing sold in the last month?
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CREATE TABLE Sales (id INT,product_id INT,size VARCHAR(10),quantity INT,sale_date DATE); INSERT INTO Sales (id,product_id,size,quantity,sale_date) VALUES (1,1,'2XL',5,'2022-05-01'),(2,2,'XS',3,'2022-05-15');
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SELECT SUM(quantity) FROM Sales WHERE size = '2XL' AND sale_date >= DATE_SUB(CURRENT_DATE, INTERVAL 1 MONTH);
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Delete the record for the species "Atlantic ridley sea turtle" from the marine_species table.
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CREATE TABLE marine_species (id INTEGER,scientific_name TEXT,common_name TEXT); INSERT INTO marine_species (id,scientific_name,common_name) VALUES (1,'Loligo opalescens','California market squid'); INSERT INTO marine_species (id,scientific_name,common_name) VALUES (2,'Lepidochelys kempii','Atlantic ridley sea turtle');
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DELETE FROM marine_species WHERE common_name = 'Atlantic ridley sea turtle';
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Which cruelty-free makeup brands are most popular in the UK?
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CREATE TABLE makeup_sales (id INT,brand VARCHAR(50),category VARCHAR(50),sales INT,country VARCHAR(50)); INSERT INTO makeup_sales (id,brand,category,sales,country) VALUES (1,'Elate Cosmetics','Eye Shadow',200,'UK');
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SELECT brand, SUM(sales) FROM makeup_sales WHERE category IN ('Lipstick', 'Mascara', 'Eye Shadow') AND country = 'UK' AND brand NOT IN ('Brand A', 'Brand B') GROUP BY brand ORDER BY SUM(sales) DESC;
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Insert records of 2 new players for team 'Seattle Kraken'
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CREATE TABLE players (player_id INT,name VARCHAR(100),position VARCHAR(50),team_id INT); CREATE TABLE teams (team_id INT,name VARCHAR(100),city VARCHAR(100)); INSERT INTO teams (team_id,name,city) VALUES (1,'Boston Bruins','Boston'),(2,'New York Rangers','New York'),(3,'Seattle Kraken','Seattle');
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INSERT INTO players (player_id, name, position, team_id) VALUES (6, 'Sofia Garcia', 'Forward', 3), (7, 'Hiroshi Tanaka', 'Defense', 3);
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What is the average account balance of low-income borrowers in Latin America who have taken out socially responsible loans?
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CREATE TABLE Customers (CustomerID int,IncomeLevel varchar(50),Location varchar(50)); INSERT INTO Customers (CustomerID,IncomeLevel,Location) VALUES (1,'Low Income','Latin America'); CREATE TABLE Loans (LoanID int,CustomerID int,Type varchar(50),SociallyResponsible bit); INSERT INTO Loans (LoanID,CustomerID,Type,SociallyResponsible) VALUES (1,1,'Personal Loan',1); CREATE TABLE Accounts (AccountID int,CustomerID int,Balance decimal(10,2)); INSERT INTO Accounts (AccountID,CustomerID,Balance) VALUES (1,1,500.00);
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SELECT AVG(A.Balance) FROM Accounts A INNER JOIN Customers C ON A.CustomerID = C.CustomerID INNER JOIN Loans L ON C.CustomerID = L.CustomerID WHERE C.Location = 'Latin America' AND C.IncomeLevel = 'Low Income' AND L.SociallyResponsible = 1;
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List mines with environmental impact assessments conducted in 2021
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CREATE TABLE mine (id INT,name TEXT,location TEXT,eia_date DATE); INSERT INTO mine (id,name,location,eia_date) VALUES (1,'Emerald Edge','OR','2021-04-01'),(2,'Sapphire Slope','WA','2021-06-15'),(3,'Ruby Ridge','ID','2020-12-31'),(4,'Topaz Terrace','UT','2021-08-30'),(5,'Amethyst Acre','NV','2022-02-14');
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SELECT name FROM mine WHERE EXTRACT(YEAR FROM eia_date) = 2021;
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Which spacecraft have a mass greater than 6000 tons?
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CREATE TABLE SpacecraftManufacturing (id INT,company VARCHAR(255),mass FLOAT); INSERT INTO SpacecraftManufacturing (id,company,mass) VALUES (1,'Aerospace Inc.',5000.0),(2,'Galactic Corp.',7000.0),(3,'Space Tech',6500.0);
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SELECT * FROM SpacecraftManufacturing WHERE mass > 6000;
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Find the percentage of traditional artists who have engaged in community events in the last 12 months?
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CREATE TABLE artists (id INT,name VARCHAR(50),is_traditional_artist BOOLEAN);CREATE TABLE artist_event (id INT,artist_id INT,event_date DATE);
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SELECT 100.0 * COUNT(DISTINCT CASE WHEN artist_event.event_date >= DATEADD(year, -1, GETDATE()) THEN artists.id END) / COUNT(DISTINCT artists.id) as pct_last_12_months FROM artists LEFT JOIN artist_event ON artists.id = artist_event.artist_id;
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Insert a new record into the customer_preferences table for a customer who prefers vegan options
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CREATE TABLE customer_preferences (customer_preference_id INT,customer_id INT,preference VARCHAR(20),created_at TIMESTAMP);
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INSERT INTO customer_preferences (customer_id, preference, created_at) VALUES (1, 'Vegan', NOW());
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What is the total investment amount for the real estate sector?
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CREATE TABLE investments (investment_id INT,sector VARCHAR(20),investment_amount DECIMAL(10,2)); INSERT INTO investments (investment_id,sector,investment_amount) VALUES (1,'Real Estate',250000.00),(2,'Technology',500000.00);
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SELECT SUM(investment_amount) FROM investments WHERE sector = 'Real Estate';
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What is the average quantity of goods, in metric tons, shipped from the United States to Canada via the Pacific Ocean?
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CREATE TABLE shipping_routes (id INT,departure_country VARCHAR(50),arrival_country VARCHAR(50),departure_region VARCHAR(50),arrival_region VARCHAR(50),transportation_method VARCHAR(50),quantity FLOAT); INSERT INTO shipping_routes (id,departure_country,arrival_country,departure_region,arrival_region,transportation_method,quantity) VALUES (1,'United States','Canada','Pacific','Pacific','Ship',5000.3);
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SELECT AVG(quantity) FROM shipping_routes WHERE departure_country = 'United States' AND arrival_country = 'Canada' AND departure_region = 'Pacific' AND arrival_region = 'Pacific' AND transportation_method = 'Ship';
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What is the total weight of cruelty-free ingredients for each product?
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CREATE TABLE product (product_id INT,product_name TEXT); CREATE TABLE ingredient (ingredient_id INT,product_id INT,weight FLOAT,cruelty_free BOOLEAN); INSERT INTO product VALUES (1,'Lipstick'),(2,'Moisturizer'); INSERT INTO ingredient VALUES (1,1,50.0,true),(2,1,25.0,false),(3,2,30.0,true);
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SELECT p.product_name, SUM(i.weight) FROM product p JOIN ingredient i ON p.product_id = i.product_id WHERE i.cruelty_free = true GROUP BY p.product_name;
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Update the start year of the student with id 2 to 2022.
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CREATE TABLE students (id INT,region TEXT,start_year INT); INSERT INTO students (id,region,start_year) VALUES (1,'Nigeria',2019),(2,'Brazil',2020);
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UPDATE students SET start_year = 2022 WHERE id = 2;
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How many bookings were made through OTA channels for each region in Q2 of 2022?
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CREATE TABLE bookings (booking_id INT,hotel_id INT,booking_date DATE,booking_channel TEXT); INSERT INTO bookings (booking_id,hotel_id,booking_date,booking_channel) VALUES (1,1,'2022-04-01','OTA'),(2,2,'2022-05-15','Direct'),(3,1,'2022-06-30','OTA'); CREATE TABLE hotels (hotel_id INT,region TEXT); INSERT INTO hotels (hotel_id,region) VALUES (1,'Northeast'),(2,'West Coast');
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SELECT region, COUNT(*) FROM bookings b JOIN hotels h ON b.hotel_id = h.hotel_id WHERE EXTRACT(QUARTER FROM booking_date) = 2 AND booking_channel = 'OTA' GROUP BY region;
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What is the distribution of aircraft manufacturing by company and year?
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CREATE TABLE AircraftManufacturing (id INT,company VARCHAR(50),manufacture_year INT,quantity INT); INSERT INTO AircraftManufacturing (id,company,manufacture_year,quantity) VALUES (1,'Boeing',2010,200),(2,'Boeing',2015,250),(3,'Airbus',2017,300),(4,'Airbus',2018,350),(5,'Embraer',2020,200);
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SELECT company, manufacture_year, SUM(quantity) as total_aircrafts FROM AircraftManufacturing GROUP BY company, manufacture_year;
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Show the total value of digital assets owned by developers from Asia in June 2022.
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CREATE TABLE developers (developer_id INT,developer_name VARCHAR(100),developer_country VARCHAR(50),date_of_birth DATE,assets_value FLOAT); CREATE TABLE assets (asset_id INT,developer_id INT,asset_name VARCHAR(100),asset_value FLOAT); INSERT INTO developers VALUES (1,'Han','China','1988-07-08',5000); INSERT INTO developers VALUES (2,'Kim','South Korea','1991-03-20',3000); INSERT INTO assets VALUES (1,1,'Asset1',1500); INSERT INTO assets VALUES (2,1,'Asset2',2000); INSERT INTO assets VALUES (3,2,'Asset3',2500);
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SELECT d.developer_country, SUM(assets_value) as total_value FROM developers d JOIN assets a ON d.developer_id = a.developer_id WHERE d.date_of_birth BETWEEN '1980-01-01' AND '2000-12-31' AND d.developer_country IN ('China', 'South Korea', 'India', 'Japan', 'Singapore') AND a.assets_value IS NOT NULL GROUP BY d.developer_country;
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What is the total revenue generated from fair trade products?
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CREATE TABLE sales (sale_id INT,product_id INT,sale_amount DECIMAL(5,2)); INSERT INTO sales (sale_id,product_id,sale_amount) VALUES (1,1,25.99),(2,2,19.99),(3,3,39.99),(4,1,25.99); CREATE TABLE products (product_id INT,is_fair_trade BOOLEAN); INSERT INTO products (product_id,is_fair_trade) VALUES (1,TRUE),(2,FALSE),(3,FALSE),(4,TRUE);
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SELECT SUM(sale_amount) FROM sales JOIN products ON sales.product_id = products.product_id WHERE products.is_fair_trade = TRUE;
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What is the total CO2 emissions for flights between Australia and New Zealand in 2019?
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CREATE TABLE flights(flight_id INT,origin TEXT,destination TEXT,year INT,distance INT,CO2_emissions INT);INSERT INTO flights (flight_id,origin,destination,year,distance,CO2_emissions) VALUES (1,'Sydney','Auckland',2019,2166,108300),(2,'Melbourne','Wellington',2019,1972,98600),(3,'Brisbane','Christchurch',2019,2235,111750),(4,'Adelaide','Queenstown',2019,2446,122300),(5,'Perth','Dunedin',2019,3882,194100);
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SELECT SUM(CO2_emissions) FROM flights WHERE origin IN ('Sydney', 'Melbourne', 'Brisbane', 'Adelaide', 'Perth') AND destination IN ('Auckland', 'Wellington', 'Christchurch', 'Queenstown', 'Dunedin') AND year = 2019;
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What is the total claim amount for policy type 'Auto' in the Claims department for all time?
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CREATE TABLE Claims (ClaimID INT,PolicyType VARCHAR(20),ProcessingDepartment VARCHAR(20),ProcessingDate DATE,ClaimAmount INT); INSERT INTO Claims (ClaimID,PolicyType,ProcessingDepartment,ProcessingDate,ClaimAmount) VALUES (1,'Auto','Claims','2023-01-10',5000),(2,'Home','Risk Assessment','2023-02-15',20000);
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SELECT PolicyType, SUM(ClaimAmount) as TotalClaimAmount FROM Claims WHERE ProcessingDepartment = 'Claims' AND PolicyType = 'Auto' GROUP BY PolicyType;
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Compare the energy storage capacities of utility-scale batteries and pumped hydro storage systems in the United States.
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CREATE TABLE us_battery_storage (storage_type VARCHAR(20),capacity INT); INSERT INTO us_battery_storage (storage_type,capacity) VALUES ('Utility-scale Batteries',25000),('Pumped Hydro Storage',150000);
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SELECT capacity FROM us_battery_storage WHERE storage_type = 'Utility-scale Batteries' INTERSECT SELECT capacity FROM us_battery_storage WHERE storage_type = 'Pumped Hydro Storage';
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Show the total number of followers gained and lost by users from India, grouped by month.
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CREATE TABLE user_activity (id INT,user_id INT,activity_type VARCHAR(50),activity_date DATE,followers INT); INSERT INTO user_activity (id,user_id,activity_type,activity_date,followers) VALUES (1,1,'Followers Gained','2022-03-01',50),(2,2,'Followers Lost','2022-03-02',-30),(3,3,'Followers Gained','2022-03-03',25),(4,4,'Followers Lost','2022-03-04',-10),(5,5,'Followers Gained','2022-03-05',40); CREATE TABLE users (id INT,country VARCHAR(50)); INSERT INTO users (id,country) VALUES (1,'India'),(2,'India'),(3,'India'),(4,'India'),(5,'India');
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SELECT DATE_FORMAT(activity_date, '%Y-%m') as month, SUM(CASE WHEN activity_type = 'Followers Gained' THEN followers ELSE -followers END) as net_followers FROM user_activity JOIN users ON user_activity.user_id = users.id WHERE users.country = 'India' GROUP BY month;
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What is the minimum trip duration for American tourists visiting Europe in 2022?
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CREATE TABLE tourism_stats (id INT PRIMARY KEY,year INT,country VARCHAR(255),destination VARCHAR(255),duration INT); INSERT INTO tourism_stats (id,year,country,destination,duration) VALUES (1,2022,'USA','France',7),(2,2022,'USA','Italy',10),(3,2022,'USA','Spain',5);
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SELECT MIN(duration) FROM tourism_stats WHERE country = 'USA' AND destination LIKE 'Europe%' AND year = 2022;
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Insert data about an excavation site into the Excavation_Sites table
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CREATE TABLE Excavation_Sites (id INT PRIMARY KEY,name VARCHAR(255),location TEXT,country VARCHAR(255)); INSERT INTO Excavation_Sites (id,name,location,country) VALUES (1,'Pompeii','Near Naples,Italy','Italy');
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INSERT INTO Excavation_Sites (id, name, location, country) VALUES (2, 'Machu Picchu', 'Andes Mountains, Peru', 'Peru');
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What is the percentage of smokers in Japan?
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CREATE TABLE Smoking (ID INT,Country VARCHAR(100),Year INT,SmokerPercentage FLOAT); INSERT INTO Smoking (ID,Country,Year,SmokerPercentage) VALUES (1,'Japan',2020,17.8);
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SELECT SmokerPercentage FROM Smoking WHERE Country = 'Japan' AND Year = 2020;
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What was the total cost of economic diversification projects in the 'Diversification' table implemented in 2016 or earlier, for projects in 'Africa'?
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CREATE TABLE Diversification (id INT,project VARCHAR(255),country VARCHAR(255),year INT,cost FLOAT); INSERT INTO Diversification (id,project,country,year,cost) VALUES (1,'Agro-Processing Plant','Morocco',2015,4000000),(2,'Tourism Complex','Egypt',2017,8000000),(3,'Textile Factory','Tunisia',2016,5000000),(4,'IT Hub','Algeria',2018,9000000);
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SELECT SUM(cost) as total_cost FROM Diversification WHERE year <= 2016 AND country LIKE 'Africa%';
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What is the average duration of all missions to Mars?
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CREATE TABLE Missions (MissionID INT,Name VARCHAR(100),Destination VARCHAR(50),Duration FLOAT);
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SELECT AVG(Duration) FROM Missions WHERE Destination = 'Mars';
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Find the average speed of Nigerian-flagged vessels traveling to Port L in the last 10 days of each month in 2019.
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CREATE TABLE Vessels (id INT,name TEXT,speed FLOAT,flag_country TEXT,arrive_port TEXT,arrive_date DATE); INSERT INTO Vessels (id,name,speed,flag_country,arrive_port,arrive_date) VALUES (1,'Vessel1',24.5,'Nigeria','Port L','2019-01-25'); INSERT INTO Vessels (id,name,speed,flag_country,arrive_port,arrive_date) VALUES (2,'Vessel2',26.0,'Nigeria','Port L','2019-02-22');
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SELECT arrive_port, AVG(speed) FROM Vessels WHERE flag_country = 'Nigeria' AND arrive_port = 'Port L' AND DATE_TRUNC('month', arrive_date) = DATE_TRUNC('month', arrive_date - INTERVAL '10 days') AND EXTRACT(YEAR FROM arrive_date) = 2019 GROUP BY arrive_port;
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What is the number of hospitals in rural areas of Texas, California, and New York?
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CREATE TABLE hospitals (id INT,name TEXT,location TEXT); INSERT INTO hospitals (id,name,location) VALUES (1,'Hospital A','Rural Texas'); INSERT INTO hospitals (id,name,location) VALUES (2,'Hospital B','Rural California'); INSERT INTO hospitals (id,name,location) VALUES (3,'Hospital C','Rural New York');
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SELECT COUNT(*) FROM hospitals WHERE location IN ('Rural Texas', 'Rural California', 'Rural New York');
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Show carbon offset programs in the 'Southeast' region and their respective offset amounts
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CREATE TABLE southeast_offsets (id INT,program_name TEXT,region TEXT,offset_amount INT); INSERT INTO southeast_offsets (id,program_name,region,offset_amount) VALUES (1,'GreenTrees','Southeast',12000),(2,'Carbonfund','Southeast',18000),(3,'TerraPass','Southeast',24000);
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SELECT program_name, offset_amount FROM southeast_offsets WHERE region = 'Southeast';
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How many artists in the 'artists' table are from each continent?
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CREATE TABLE artists (artist_id INT,name VARCHAR(50),age INT,country VARCHAR(50)); INSERT INTO artists (artist_id,name,age,country) VALUES (1,'Pablo Picasso',91,'Spain'); INSERT INTO artists (artist_id,name,age,country) VALUES (2,'Francis Bacon',82,'Ireland'); INSERT INTO artists (artist_id,name,age,country) VALUES (3,'Piet Mondrian',71,'Netherlands'); CREATE TABLE countries (country VARCHAR(50),continent VARCHAR(50)); INSERT INTO countries (country,continent) VALUES ('Spain','Europe'); INSERT INTO countries (country,continent) VALUES ('Ireland','Europe'); INSERT INTO countries (country,continent) VALUES ('Netherlands','Europe');
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SELECT c.continent, COUNT(a.artist_id) as num_artists FROM artists a JOIN countries c ON a.country = c.country GROUP BY c.continent;
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What is the total number of military bases and their respective countries?
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CREATE TABLE military_bases (id INT,name VARCHAR(50),country VARCHAR(50)); INSERT INTO military_bases (id,name,country) VALUES (1,'Fort Bragg','USA'),(2,'Camp Pendleton','USA'),(3,'Canberra Deep Space Communication Complex','Australia');
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SELECT COUNT(*) as total_bases, country FROM military_bases GROUP BY country;
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How many different animals were observed in the 'arctic_animal_sightings' table for each month?
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CREATE TABLE arctic_animal_sightings (id INT,date DATE,animal VARCHAR(255)); INSERT INTO arctic_animal_sightings (id,date,animal) VALUES (1,'2021-01-01','Polar Bear'),(2,'2021-02-01','Walrus'),(3,'2021-03-01','Fox');
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SELECT MONTH(date) AS month, COUNT(DISTINCT animal) AS animal_count FROM arctic_animal_sightings GROUP BY month;
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List all warehouses in Canada and the total quantity of items stored in each.
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CREATE TABLE Warehouses(id INT,location VARCHAR(50),capacity INT); INSERT INTO Warehouses(id,location,capacity) VALUES (1,'Canada',1000); CREATE TABLE Inventory(id INT,warehouse_id INT,quantity INT); INSERT INTO Inventory(id,warehouse_id,quantity) VALUES (1,1,500);
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SELECT Warehouses.location, SUM(Inventory.quantity) FROM Warehouses INNER JOIN Inventory ON Warehouses.id = Inventory.warehouse_id WHERE Warehouses.location = 'Canada' GROUP BY Warehouses.id;
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Calculate the average geopolitical risk score for the Asia-Pacific region in Q2 2022.
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CREATE TABLE geopolitical_risks(id INT,region VARCHAR(50),quarter INT,year INT,score FLOAT); INSERT INTO geopolitical_risks(id,region,quarter,year,score) VALUES (1,'Asia-Pacific',1,2022,4.5); INSERT INTO geopolitical_risks(id,region,quarter,year,score) VALUES (2,'Asia-Pacific',2,2022,5.0);
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SELECT AVG(score) FROM geopolitical_risks WHERE region = 'Asia-Pacific' AND quarter = 2 AND year = 2022;
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Update diplomacy staff salaries to be 5% higher than their current amount.
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CREATE TABLE diplomacy_staff (staff_id INT,name VARCHAR(255),position VARCHAR(255),salary INT); INSERT INTO diplomacy_staff (staff_id,name,position,salary) VALUES (1,'John Doe','Ambassador',75000),(2,'Jane Smith','Consul',50000),(3,'Michael Johnson','Diplomatic Attaché',60000);
|
UPDATE diplomacy_staff SET salary = salary * 1.05;
|
What is the average well depth for wells in the 'North Sea' region?
|
CREATE TABLE wells (well_id INT,well_name VARCHAR(255),well_depth FLOAT,region VARCHAR(255)); INSERT INTO wells (well_id,well_name,well_depth,region) VALUES (1,'A1',3000,'North Sea'),(2,'B2',2500,'North Sea'),(3,'C3',4000,'Gulf of Mexico');
|
SELECT AVG(well_depth) FROM wells WHERE region = 'North Sea';
|
What is the average workplace safety score for manufacturing unions in Germany?
|
CREATE TABLE unions (id INT,name TEXT,location TEXT,type TEXT,safety_score INT); INSERT INTO unions (id,name,location,type,safety_score) VALUES (1,'Union A','Germany','Manufacturing',85),(2,'Union B','France','Manufacturing',80);
|
SELECT AVG(safety_score) FROM unions WHERE location = 'Germany' AND type = 'Manufacturing';
|
What is the total number of students in each school district?
|
CREATE TABLE school_districts (district_id INT,district_name TEXT,num_students INT);
|
SELECT district_name, SUM(num_students) as total_students FROM school_districts GROUP BY district_name;
|
What is the total funding allocated for climate communication initiatives in Europe in 2022?
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CREATE TABLE climate_mitigation (id INT,initiative_name VARCHAR(50),location VARCHAR(50),allocated_funding FLOAT,funding_year INT); INSERT INTO climate_mitigation (id,initiative_name,location,allocated_funding,funding_year) VALUES (1,'Green Media Campaign','Europe',500000,2022);
|
SELECT SUM(allocated_funding) FROM climate_mitigation WHERE location = 'Europe' AND funding_year = 2022 AND initiative_name LIKE '%climate communication%';
|
What is the percentage of total streams for each artist?
|
CREATE TABLE AlbumStreams (AlbumID int,SongID int,StreamCount int,ArtistID int); INSERT INTO AlbumStreams (AlbumID,SongID,StreamCount,ArtistID) VALUES (1,1,1000,1),(2,2,2000,2),(3,3,1500,3),(4,4,2500,4),(5,5,1800,5);
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SELECT Artists.ArtistName, (SUM(AlbumStreams.StreamCount) / (SELECT SUM(StreamCount) FROM AlbumStreams) * 100) as Percentage FROM Artists INNER JOIN AlbumStreams ON Artists.ArtistID = AlbumStreams.ArtistID GROUP BY Artists.ArtistName;
|
What is the total quantity of fair trade products sold in South America?
|
CREATE TABLE regions (id INT,name TEXT); INSERT INTO regions (id,name) VALUES (1,'North America'),(2,'South America'),(3,'Europe'),(4,'Asia'),(5,'Africa'); CREATE TABLE products (id INT,name TEXT,is_fair_trade BOOLEAN); INSERT INTO products (id,name,is_fair_trade) VALUES (1,'Product X',true),(2,'Product Y',false),(3,'Product Z',true),(4,'Product W',false); CREATE TABLE sales (id INT,product TEXT,quantity INT,region TEXT); INSERT INTO sales (id,product,quantity,region) VALUES (1,'Product X',100,'South America'),(2,'Product Y',150,'North America'),(3,'Product Z',80,'Europe'),(4,'Product W',120,'Asia');
|
SELECT SUM(sales.quantity) FROM sales INNER JOIN regions ON sales.region = regions.name INNER JOIN products ON sales.product = products.name WHERE products.is_fair_trade = true AND regions.name = 'South America';
|
Rank military equipment maintenance requests by the number of requests per month in descending order.
|
CREATE TABLE Maintenance_Requests (Equipment VARCHAR(50),Request_Month DATE,Quantity INT); INSERT INTO Maintenance_Requests (Equipment,Request_Month,Quantity) VALUES ('F-16','2022-01-01',3),('F-35','2022-01-01',5),('A-10','2022-01-01',2),('F-16','2022-02-01',4),('F-35','2022-02-01',6),('A-10','2022-02-01',1);
|
SELECT Equipment, ROW_NUMBER() OVER (ORDER BY SUM(Quantity) DESC) as Rank FROM Maintenance_Requests GROUP BY Equipment;
|
What is the maximum property tax rate for properties in each neighborhood?
|
CREATE TABLE Neighborhoods (NeighborhoodID INT,NeighborhoodName VARCHAR(255)); CREATE TABLE PropertyTaxRates (PropertyTaxRateID INT,NeighborhoodID INT,Rate DECIMAL(5,2));
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SELECT N.NeighborhoodName, MAX(PTR.Rate) as MaxRate FROM Neighborhoods N JOIN PropertyTaxRates PTR ON N.NeighborhoodID = PTR.NeighborhoodID GROUP BY N.NeighborhoodName;
|
What is the total revenue generated from 'Premium' memberships in the 'Midwest' region for the year 2022?
|
CREATE SCHEMA fitness; CREATE TABLE memberships (id INT,member_name VARCHAR(50),region VARCHAR(50),membership_type VARCHAR(50),price DECIMAL(5,2),start_date DATE,end_date DATE); INSERT INTO memberships (id,member_name,region,membership_type,price,start_date,end_date) VALUES (1,'John Doe','Midwest','Premium',79.99,'2022-01-01','2022-12-31');
|
SELECT SUM(price) FROM fitness.memberships WHERE region = 'Midwest' AND membership_type = 'Premium' AND YEAR(start_date) = 2022 AND YEAR(end_date) = 2022;
|
Delete all comments made by a user from France before 2022-08-01.
|
CREATE TABLE comments (id INT,post_id INT,user_id INT,text TEXT,created_date DATE); INSERT INTO comments (id,post_id,user_id,text,created_date) VALUES (1,1,6,'Great article!','2022-07-01'),(2,2,6,'Thank you for sharing.','2022-08-15');
|
DELETE FROM comments WHERE user_id IN (SELECT user_id FROM comments WHERE country = 'France') AND created_date < '2022-08-01'
|
Delete properties with inclusive housing policies that have expired over a year ago.
|
CREATE TABLE Property (id INT PRIMARY KEY,address VARCHAR(255),city VARCHAR(255),state VARCHAR(255),zip INT,co_owners INT,sustainable_features VARCHAR(255),price INT); CREATE TABLE InclusiveHousing (id INT PRIMARY KEY,property_id INT,policy_type VARCHAR(255),start_date DATE,end_date DATE);
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DELETE FROM Property WHERE id IN (SELECT Property.id FROM Property INNER JOIN InclusiveHousing ON Property.id = InclusiveHousing.property_id WHERE end_date < DATE_SUB(CURDATE(), INTERVAL 1 YEAR));
|
What is the average production of Lutetium per country in 2019?
|
CREATE TABLE production (country VARCHAR(255),element VARCHAR(255),quantity INT,year INT); INSERT INTO production (country,element,quantity,year) VALUES ('China','Lutetium',2000,2019),('China','Lutetium',2500,2019),('India','Lutetium',1000,2019),('India','Lutetium',1200,2019);
|
SELECT country, AVG(quantity) as avg_production FROM production WHERE element = 'Lutetium' AND year = 2019 GROUP BY country;
|
Find the percentage of patients who received therapy
|
CREATE TABLE patients_treatments (patient_id INT,treatment VARCHAR(20)); INSERT INTO patients_treatments (patient_id,treatment) VALUES (1,'therapy');
|
SELECT (COUNT(CASE WHEN treatment = 'therapy' THEN 1 END) * 100.0 / COUNT(*)) AS therapy_percentage FROM patients_treatments;
|
Delete records of community engagement events that have been cancelled or do not have a specified event type.
|
CREATE TABLE CommunityEvents (event_id INT,event_name VARCHAR(20),event_type VARCHAR(10),event_status VARCHAR(10)); CREATE TABLE EventDates (event_id INT,event_date DATE);
|
DELETE FROM CommunityEvents WHERE event_status = 'Cancelled' OR event_type IS NULL; DELETE FROM EventDates WHERE event_id NOT IN (SELECT event_id FROM CommunityEvents);
|
Number of travel advisories issued for Brazil in the past 6 months
|
CREATE TABLE advisories (country VARCHAR(255),issue_date DATE); INSERT INTO advisories (country,issue_date) VALUES ('Brazil','2022-05-12'),('Brazil','2022-03-28');
|
SELECT COUNT(*) FROM advisories WHERE country = 'Brazil' AND issue_date >= DATEADD(month, -6, GETDATE());
|
What is the revenue generated by each sustainable hotel in Portugal last month?
|
CREATE TABLE bookings (id INT,hotel_id INT,tourist_id INT,cost FLOAT,date DATE); CREATE TABLE hotels (id INT,name TEXT,location TEXT,country TEXT,sustainable BOOLEAN); INSERT INTO bookings (id,hotel_id,tourist_id,cost,date) VALUES (1,1,101,100.00,'2022-02-01'),(2,2,102,120.00,'2022-02-10'); INSERT INTO hotels (id,name,location,country,sustainable) VALUES (1,'Eco Hotel Lisbon','Lisbon','Portugal',true),(2,'Green Hotel Porto','Porto','Portugal',true);
|
SELECT hotel_id, SUM(cost) FROM bookings INNER JOIN hotels ON bookings.hotel_id = hotels.id WHERE country = 'Portugal' AND sustainable = true AND date >= DATEADD(day, -30, GETDATE()) GROUP BY hotel_id;
|
Delete all records from the 'space_events' table that occurred before the year 2000
|
CREATE TABLE space_events (id INT PRIMARY KEY,name VARCHAR(50),year INT); INSERT INTO space_events (id,name,year) VALUES (1,'First Satellite Launched',1957),(2,'First Human in Space',1961),(3,'First Spacewalk',1965),(4,'First Space Station',1971),(5,'First Image of a Black Hole',2019);
|
DELETE FROM space_events WHERE year < 2000;
|
Calculate the total sales for each day of the week
|
CREATE TABLE sales (day VARCHAR(255),sales DECIMAL(10,2)); INSERT INTO sales (day,sales) VALUES ('Monday',1500),('Tuesday',1700),('Wednesday',1200),('Thursday',2000),('Friday',2500),('Saturday',3000),('Sunday',1800);
|
SELECT day, SUM(sales) as total_sales FROM sales GROUP BY day;
|
What is the average annual military spending by 'Germany' in the last 5 years?
|
CREATE TABLE military_spending (country TEXT,year INT,amount INT); INSERT INTO military_spending (country,year,amount) VALUES ('Germany',2018,45000000);
|
SELECT AVG(amount) AS avg_annual_spending FROM military_spending WHERE country = 'Germany' AND year BETWEEN YEAR(DATE_SUB(CURDATE(), INTERVAL 5 YEAR)) AND YEAR(CURDATE());
|
What is the rank of military innovation events by country based on frequency?
|
CREATE TABLE MilitaryInnovation(Country NVARCHAR(50),EventType VARCHAR(50),Year INT);INSERT INTO MilitaryInnovation(Country,EventType,Year) VALUES ('United States','Drone Technology',2015),('China','Artificial Intelligence',2016),('United States','Cybersecurity',2017),('China','Hypersonic Weapons',2018),('United States','Quantum Computing',2019),('China','Robotics',2020);
|
SELECT Country, RANK() OVER(ORDER BY COUNT(*) DESC) AS Event_Rank FROM MilitaryInnovation GROUP BY Country;
|
Delete all records with accommodation type "mobility_aids" from the "accommodations" table
|
CREATE TABLE accommodations (id INT,student_id INT,accommodation_type VARCHAR(255),cost FLOAT); INSERT INTO accommodations (id,student_id,accommodation_type,cost) VALUES (1,123,'visual_aids',250.0),(2,456,'audio_aids',100.0),(3,789,'large_print_materials',120.0),(4,890,'mobility_aids',300.0);
|
DELETE FROM accommodations WHERE accommodation_type = 'mobility_aids';
|
What is the total number of labor hours spent on sustainable building projects in the state of California?
|
CREATE TABLE construction_labor (id INT,worker_name VARCHAR(50),hours_worked INT,project_type VARCHAR(20),state VARCHAR(20)); INSERT INTO construction_labor (id,worker_name,hours_worked,project_type,state) VALUES (1,'John Doe',100,'Sustainable','California');
|
SELECT SUM(hours_worked) FROM construction_labor WHERE project_type = 'Sustainable' AND state = 'California';
|
How many unique users posted content in April?
|
CREATE TABLE posts (id INT,user_id INT,post_date DATE); INSERT INTO posts (id,user_id,post_date) VALUES (1,1,'2022-01-01'),(2,2,'2022-01-02'),(3,3,'2022-04-01'),(4,4,'2022-03-01'),(5,5,'2022-04-15'),(6,6,'2022-04-30');
|
SELECT COUNT(DISTINCT user_id) FROM posts WHERE MONTH(post_date) = 4;
|
What is the average attendance for cultural events in the 'music' category, and how many events are there in total for this category?
|
CREATE TABLE event_attendance (id INT,event TEXT,category TEXT,attendees INT); INSERT INTO event_attendance (id,event,category,attendees) VALUES (1,'Concert','music',1000),(2,'Jazz Festival','music',2000),(3,'Theatre Play','theatre',1500);
|
SELECT category, AVG(attendees) as avg_attendance, COUNT(DISTINCT event) as num_events FROM event_attendance WHERE category = 'music' GROUP BY category;
|
What is the maximum budget allocated for healthcare services in each region?
|
CREATE TABLE HealthcareBudget (Region VARCHAR(50),Year INT,Budget FLOAT); INSERT INTO HealthcareBudget VALUES ('North',2018,12000000),('South',2019,13000000),('East',2020,14000000),('West',2021,15000000);
|
SELECT Region, MAX(Budget) OVER (PARTITION BY Year) AS MaxBudget FROM HealthcareBudget;
|
What is the number of policy advocacy initiatives implemented in each year by region?
|
CREATE TABLE policy_advocacy (initiative_id INT,initiative_name VARCHAR(50),implementation_year INT,region VARCHAR(50)); INSERT INTO policy_advocacy (initiative_id,initiative_name,implementation_year,region) VALUES (1,'Accessible Curriculum',2018,'Northeast');
|
SELECT region, implementation_year, COUNT(*) as initiatives_per_year FROM policy_advocacy GROUP BY region, implementation_year;
|
Insert a new record for an employee from the 'Operations' department who joined the 'Team Building' training program.
|
CREATE TABLE training_operations (id INT,name VARCHAR(50),department VARCHAR(50),program VARCHAR(50));
|
INSERT INTO training_operations (id, name, department, program) VALUES (2, 'Clara Garcia', 'Operations', 'Team Building');
|
Delete all records from the 'athlete_wellbeing' table where the 'wellbeing_program' is 'Yoga'
|
CREATE TABLE athlete_wellbeing (athlete_id INT,wellbeing_program VARCHAR(20)); INSERT INTO athlete_wellbeing (athlete_id,wellbeing_program) VALUES (1,'Yoga'),(2,'Meditation'),(3,'Stretching');
|
DELETE FROM athlete_wellbeing WHERE wellbeing_program = 'Yoga';
|
What is the average claim amount for each policy type, excluding policy types with fewer than 3 policies?
|
CREATE TABLE Claims (ClaimID INT,PolicyID INT,ClaimAmount DECIMAL(10,2)); CREATE TABLE Policy (PolicyID INT,PolicyType VARCHAR(20)); INSERT INTO Claims (ClaimID,PolicyID,ClaimAmount) VALUES (1,1,1500.00),(2,2,250.00),(3,3,500.00),(4,1,1000.00); INSERT INTO Policy (PolicyID,PolicyType) VALUES (1,'Homeowners'),(2,'Auto'),(3,'Renters'),(4,'Homeowners'),(5,'Homeowners');
|
SELECT Policy.PolicyType, AVG(Claims.ClaimAmount) AS AvgClaimAmount FROM Policy INNER JOIN Claims ON Policy.PolicyID = Claims.PolicyID GROUP BY Policy.PolicyType HAVING COUNT(DISTINCT Policy.PolicyID) >= 3;
|
List the names and research interests of all faculty members in the 'Social Sciences' department
|
CREATE TABLE faculty (id INT,name VARCHAR(30),department VARCHAR(20),research_interest TEXT); INSERT INTO faculty (id,name,department,research_interest) VALUES (1,'John Doe','Social Sciences','Inequality and Education'),(2,'Jane Smith','Natural Sciences','Climate Change');
|
SELECT name, research_interest FROM faculty WHERE department = 'Social Sciences';
|
How many individuals have accessed legal aid services in Texas and New York?
|
CREATE TABLE LegalAidServices (ServiceID INT,ClientName VARCHAR(50),State VARCHAR(20)); INSERT INTO LegalAidServices VALUES (1,'Client A','Texas'); INSERT INTO LegalAidServices VALUES (2,'Client B','Texas'); INSERT INTO LegalAidServices VALUES (3,'Client C','New York');
|
SELECT COUNT(*) FROM LegalAidServices WHERE State IN ('Texas', 'New York');
|
What is the average price of products for each brand, ranked by the average price?
|
CREATE TABLE brands (brand_id INT,brand_name VARCHAR(50)); INSERT INTO brands VALUES (1,'Lush'),(2,'The Body Shop'),(3,'Sephora'),(4,'Ulta'); CREATE TABLE products (product_id INT,product_name VARCHAR(50),price DECIMAL(5,2),brand_id INT); INSERT INTO products VALUES (1,'Face Wash',15.99,1),(2,'Moisturizer',25.49,1),(3,'Scrub',12.50,2),(4,'Lip Balm',4.99,2),(5,'Eye Shadow Palette',35.00,3),(6,'Mascara',14.99,3),(7,'Foundation',29.99,4),(8,'Blush',12.99,4);
|
SELECT brand_name, AVG(price) as avg_price FROM products JOIN brands ON products.brand_id = brands.brand_id GROUP BY brand_name ORDER BY avg_price DESC;
|
What is the number of military innovation projects and their total budget for each country in the Asia-Pacific region in the last 7 years?
|
CREATE TABLE Military_Innovation_Projects (id INT,country VARCHAR(50),year INT,project VARCHAR(50),budget INT);
|
SELECT country, COUNT(project) as projects, SUM(budget) as total_budget FROM Military_Innovation_Projects WHERE region = 'Asia-Pacific' AND year BETWEEN (YEAR(CURRENT_DATE) - 7) AND YEAR(CURRENT_DATE) GROUP BY country;
|
What is the minimum reservoir capacity of a dam in the 'dam_reservoirs' table?
|
CREATE TABLE dam_reservoirs (dam_id INT,dam_name VARCHAR(50),reservoir_name VARCHAR(50),reservoir_capacity INT);
|
SELECT MIN(reservoir_capacity) FROM dam_reservoirs;
|
Create a table for storing information about disability support programs
|
CREATE TABLE support_programs (program_id INT PRIMARY KEY,name VARCHAR(255),description TEXT,category VARCHAR(255));
|
CREATE TABLE if not exists support_programs_new AS SELECT * FROM support_programs WHERE 1=0;
|
Insert records in the vessel_safety table for vessel "Island Breeze" with the following data: (2022-02-01, 'A')
|
CREATE TABLE vessel_safety (last_inspection_date DATE,last_inspection_grade CHAR(1),vessel_name VARCHAR(255));
|
INSERT INTO vessel_safety (last_inspection_date, last_inspection_grade, vessel_name) VALUES ('2022-02-01', 'A', 'Island Breeze');
|
Find the average price of organic fruits in the 'Produce' table
|
CREATE TABLE Produce (id INT PRIMARY KEY,name VARCHAR(255),type VARCHAR(255),price DECIMAL(5,2)); INSERT INTO Produce (id,name,type,price) VALUES (1,'Apples','Organic',1.99),(2,'Bananas','Organic',1.49);
|
SELECT AVG(price) FROM Produce WHERE type = 'Organic' AND name LIKE 'Fruits%';
|
Show all aircraft models and their associated manufacturers and launch dates.
|
CREATE TABLE aircraft (aircraft_id INT,model VARCHAR(100),manufacturer VARCHAR(100),launch_date DATE); INSERT INTO aircraft (aircraft_id,model,manufacturer,launch_date) VALUES (1,'Aircraft Model 1','Aviation Inc.','2015-01-01'); INSERT INTO aircraft (aircraft_id,model,manufacturer,launch_date) VALUES (2,'Aircraft Model 2','Flight Corp.','2020-05-15');
|
SELECT model, manufacturer, launch_date FROM aircraft;
|
What is the average rating of public libraries in the city of "Los Angeles"?
|
CREATE TABLE libraries (library_id INT,library_name TEXT,city TEXT,rating INT); INSERT INTO libraries (library_id,library_name,city,rating) VALUES (1,'Los Angeles Central Library','Los Angeles',8),(2,'Los Angeles Public Library','Los Angeles',7),(3,'Baldwin Hills Library','Los Angeles',9);
|
SELECT AVG(rating) FROM libraries WHERE city = 'Los Angeles' AND type = 'Public';
|
What is the change in water conservation efforts by month in 2020?
|
CREATE TABLE conservation_initiatives (date DATE,water_conserved FLOAT); INSERT INTO conservation_initiatives (date,water_conserved) VALUES ('2020-01-01',100000),('2020-02-01',150000),('2020-03-01',120000),('2020-04-01',180000);
|
SELECT EXTRACT(MONTH FROM date) AS month, AVG(water_conserved) AS avg_conserved FROM conservation_initiatives WHERE date BETWEEN '2020-01-01' AND '2020-12-31' GROUP BY month;
|
What is the earliest launch date of any satellite that is still in orbit?
|
CREATE TABLE satellites (satellite_id INT,satellite_name VARCHAR(100),country VARCHAR(50),launch_date DATE,in_orbit BOOLEAN); INSERT INTO satellites (satellite_id,satellite_name,country,launch_date,in_orbit) VALUES (1,'Sputnik 1','Russia','1957-10-04',TRUE); INSERT INTO satellites (satellite_id,satellite_name,country,launch_date,in_orbit) VALUES (2,'Explorer 1','United States','1958-01-31',TRUE);
|
SELECT MIN(launch_date) FROM satellites WHERE in_orbit = TRUE;
|
Which mobile subscribers in the city of New York have a data usage greater than 15 GB?
|
CREATE TABLE mobile_subscribers (subscriber_id INT,city VARCHAR(255),data_usage_gb DECIMAL(5,2)); INSERT INTO mobile_subscribers (subscriber_id,city,data_usage_gb) VALUES (1,'New York',18.3),(2,'New York',12.5),(3,'Los Angeles',16.7);
|
SELECT subscriber_id FROM mobile_subscribers WHERE city = 'New York' AND data_usage_gb > 15;
|
How many job applicants in the recruitment database are from underrepresented racial or ethnic groups?
|
CREATE TABLE recruitment_database (id INT,applicant_race TEXT,applicant_ethnicity TEXT,application_date DATE); INSERT INTO recruitment_database (id,applicant_race,applicant_ethnicity,application_date) VALUES (1,'Asian','Not Hispanic or Latino','2022-03-01'),(2,'White','Not Hispanic or Latino','2022-03-02'),(3,'Black or African American','Hispanic or Latino','2022-03-03');
|
SELECT COUNT(*) as count FROM recruitment_database WHERE (applicant_race = 'Black or African American' OR applicant_race = 'Hispanic or Latino' OR applicant_race = 'American Indian or Alaska Native' OR applicant_race = 'Native Hawaiian or Other Pacific Islander') OR (applicant_ethnicity = 'Hispanic or Latino');
|
List all regulatory frameworks for decentralized applications in the EU.
|
CREATE TABLE daaps (id INT,name VARCHAR(255),regulatory_framework VARCHAR(255)); INSERT INTO daaps (id,name,regulatory_framework) VALUES (1,'Uniswap','MiCA'),(2,'Aave','AMLD'),(3,'Compound','eIDAS'); CREATE TABLE regions (id INT,name VARCHAR(255)); INSERT INTO regions (id,name) VALUES (1,'EU'),(2,'US'),(3,'APAC');
|
SELECT name FROM daaps INNER JOIN regions ON daaps.regulatory_framework = regions.name WHERE regions.name = 'EU';
|
Who is the top donor in April 2022?
|
CREATE TABLE Donations (DonationID INT,DonorID INT,DonationDate DATE,DonationAmount FLOAT);
|
SELECT DonorID, MAX(DonationAmount) as 'Highest Donation' FROM Donations WHERE DonationDate BETWEEN '2022-04-01' AND '2022-04-30' GROUP BY DonorID ORDER BY 'Highest Donation' DESC LIMIT 1;
|
Identify the top 5 cities with the most attendees
|
CREATE TABLE city_attendees (city VARCHAR(20),attendee_id INT); INSERT INTO city_attendees (city,attendee_id) VALUES ('NYC',1),('LA',2),('NYC',3),('Chicago',4);
|
SELECT city, COUNT(attendee_id) AS num_attendees FROM city_attendees GROUP BY city ORDER BY num_attendees DESC LIMIT 5;
|
What is the average heart rate for each member during 'Yoga' workouts in January 2022?
|
CREATE TABLE memberships (id INT,member_type VARCHAR(50),region VARCHAR(50)); CREATE TABLE workout_data (member_id INT,workout_type VARCHAR(50),duration INT,heart_rate_avg INT,calories_burned INT,workout_date DATE);
|
SELECT m.id, AVG(w.heart_rate_avg) as avg_heart_rate FROM memberships m JOIN workout_data w ON m.id = w.member_id WHERE w.workout_type = 'Yoga' AND w.workout_date >= DATE '2022-01-01' AND w.workout_date < DATE '2022-02-01' GROUP BY m.id;
|
List all job titles that have less than 3 employees and the number of employees in the "employee" and "job" tables
|
CREATE TABLE employee (id INT,job_id INT); CREATE TABLE job (id INT,title TEXT);
|
SELECT j.title, COUNT(e.id) AS num_employees FROM job j LEFT JOIN employee e ON j.id = e.job_id GROUP BY j.title HAVING COUNT(e.id) < 3;
|
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