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Which program had the most unique donors in Q1 2022?
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CREATE TABLE Q1Donors (DonorID INT,Program VARCHAR(30)); INSERT INTO Q1Donors (DonorID,Program) VALUES (1,'Environment'),(2,'Education'),(3,'Environment'),(4,'Health'),(5,'Education');
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SELECT Program, COUNT(DISTINCT DonorID) FROM Q1Donors WHERE Program IN ('Environment', 'Education', 'Health') GROUP BY Program ORDER BY COUNT(DISTINCT DonorID) DESC LIMIT 1;
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What is the minimum lead time for warehouse transfers in the New York warehouse?
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CREATE TABLE WarehouseTransfers (id INT,source_warehouse_id INT,destination_warehouse_id INT,lead_time INT); INSERT INTO WarehouseTransfers (id,source_warehouse_id,destination_warehouse_id,lead_time) VALUES (1,6,7,3),(2,6,7,5),(3,8,6,4); CREATE TABLE Warehouses (id INT,name TEXT,city TEXT,state TEXT); INSERT INTO Warehouses (id,name,city,state) VALUES (6,'New York Warehouse','New York','NY'),(7,'Chicago Warehouse','Chicago','IL'),(8,'Denver Warehouse','Denver','CO');
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SELECT MIN(lead_time) FROM WarehouseTransfers JOIN Warehouses ON WarehouseTransfers.source_warehouse_id = Warehouses.id WHERE Warehouses.name = 'New York Warehouse';
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What is the total number of packages shipped to the Midwest from all warehouses?
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CREATE TABLE midwest_states (state_id INT,state_name VARCHAR(50)); INSERT INTO midwest_states (state_id,state_name) VALUES (1,'Illinois'),(2,'Indiana'),(3,'Iowa'),(4,'Kansas'),(5,'Michigan'),(6,'Minnesota'),(7,'Missouri'),(8,'Nebraska'),(9,'Ohio'),(10,'Wisconsin'); CREATE TABLE packages (package_id INT,package_weight INT,warehouse_id INT,recipient_state VARCHAR(50)); INSERT INTO packages (package_id,package_weight,warehouse_id,recipient_state) VALUES (1,5,1,'California'),(2,3,2,'Texas'),(3,4,3,'Illinois');
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SELECT COUNT(package_id) FROM packages WHERE recipient_state IN (SELECT state_name FROM midwest_states);
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Which startups in the 'StartupFunding' table received funding in 2020 or later and have a budget greater than $500,000?
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CREATE SCHEMA BiotechStartups; CREATE TABLE StartupFunding (startup_name VARCHAR(50),funding_year INT,funding DECIMAL(10,2)); INSERT INTO StartupFunding VALUES ('StartupA',2019,500000),('StartupB',2020,750000);
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SELECT startup_name FROM BiotechStartups.StartupFunding WHERE funding_year >= 2020 AND funding > 500000;
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What are the names of journals where at least one professor from the Physics department has published?
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CREATE TABLE Publications (PublicationID INT,Author VARCHAR(50),Journal VARCHAR(50),Year INT); INSERT INTO Publications (PublicationID,Author,Journal,Year) VALUES (1,'Alice','Journal of Physics',2020); INSERT INTO Publications (PublicationID,Author,Journal,Year) VALUES (2,'Bob','Journal of Chemistry',2019); INSERT INTO Publications (PublicationID,Author,Journal,Year) VALUES (3,'Carla','Journal of Physics',2021); INSERT INTO Professors (ProfessorID,Name,Department) VALUES (1,'Alice','Physics'); INSERT INTO Professors (ProfessorID,Name,Department) VALUES (2,'Bob','Chemistry');
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SELECT Journal FROM Publications WHERE Author IN (SELECT Name FROM Professors WHERE Department = 'Physics');
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Find the number of wind turbines installed in Germany in the year 2020.
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CREATE TABLE renewable_energy (id INT,type TEXT,country TEXT,installation_year INT); INSERT INTO renewable_energy (id,type,country,installation_year) VALUES (1,'Wind Turbine','Germany',2020),(2,'Solar Panel','France',2019),(3,'Wind Turbine','Germany',2018);
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SELECT COUNT(*) FROM renewable_energy WHERE type = 'Wind Turbine' AND country = 'Germany' AND installation_year = 2020;
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Retrieve the project names and their costs for green building projects in the GreenBuildings schema
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CREATE SCHEMA GreenBuildings; USE GreenBuildings; CREATE TABLE GreenBuildingProjects (id INT,project_name VARCHAR(100),cost DECIMAL(10,2)); INSERT INTO GreenBuildingProjects (id,project_name,cost) VALUES (1,'Solar Panel Installation',150000.00),(2,'Wind Turbine Installation',200000.00);
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SELECT project_name, cost FROM GreenBuildings.GreenBuildingProjects;
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Create a cross join table for mental health parity and community health workers
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CREATE TABLE mental_health_parity (id INT PRIMARY KEY,state VARCHAR(2),year INT,accessibility FLOAT,quality FLOAT); CREATE TABLE community_health_workers (id INT PRIMARY KEY,state VARCHAR(2),year INT,workers_per_capita FLOAT,supervision_hours INT);
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CREATE TABLE if not exists mental_health_parity_community_workers AS SELECT * FROM mental_health_parity CROSS JOIN community_health_workers WHERE FALSE;
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Insert data into "hotel_sustainability" table with values "1", "Green Hotel", "Paris", "Recycling, Solar Power"
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CREATE TABLE hotel_sustainability (hotel_id integer,name text,location text,sustainable_practices text);
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INSERT INTO hotel_sustainability (hotel_id, name, location, sustainable_practices) VALUES (1, 'Green Hotel', 'Paris', 'Recycling, Solar Power');
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List the names of all museums in Canada with a rating greater than 4.0 and having virtual tours.
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CREATE TABLE museums (museum_id INT,name VARCHAR(255),country VARCHAR(255),rating FLOAT,virtual_tour BOOLEAN); INSERT INTO museums (museum_id,name,country,rating,virtual_tour) VALUES (1,'Royal Ontario Museum','Canada',4.4,TRUE),(2,'Montreal Museum of Fine Arts','Canada',4.1,FALSE),(3,'Vancouver Art Gallery','Canada',4.6,TRUE);
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SELECT name FROM museums WHERE country = 'Canada' AND rating > 4.0 AND virtual_tour = TRUE;
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What is the average revenue of virtual tours in 'Spain'?
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CREATE TABLE virtual_tours (id INT,name TEXT,country TEXT,revenue FLOAT); INSERT INTO virtual_tours (id,name,country,revenue) VALUES (1,'Virtual Barcelona Tour','Spain',2000);
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SELECT AVG(revenue) FROM virtual_tours WHERE country = 'Spain';
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What is the maximum number of virtual tours taken by a single user in the UK?
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CREATE TABLE virtual_tour_data (user_id INT,hotel_id INT,tour_date DATE); INSERT INTO virtual_tour_data (user_id,hotel_id,tour_date) VALUES (1,10,'2022-01-01'),(2,11,'2022-01-03'),(3,12,'2022-01-05'),(4,10,'2022-01-07'),(5,10,'2022-01-09'); CREATE TABLE hotels (hotel_id INT,hotel_name TEXT,country TEXT); INSERT INTO hotels (hotel_id,hotel_name,country) VALUES (10,'Royal Park Hotel','UK'),(11,'The Ritz London','UK'),(12,'Hotel de Crillon','France');
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SELECT MAX(vt.user_tours) FROM (SELECT user_id, COUNT(DISTINCT hotel_id) as user_tours FROM virtual_tour_data WHERE country = 'UK' GROUP BY user_id) as vt;
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What is the most recent exhibition for each artist?
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CREATE TABLE artist_exhibitions (artist_id INT,exhibition_id INT,exhibition_title VARCHAR(255),exhibition_location VARCHAR(255),exhibition_start_date DATE); INSERT INTO artist_exhibitions (artist_id,exhibition_id,exhibition_title,exhibition_location,exhibition_start_date) VALUES (1,3,'Da Vinci Masterpieces','Metropolitan Museum','2024-01-01'); INSERT INTO artist_exhibitions (artist_id,exhibition_id,exhibition_title,exhibition_location,exhibition_start_date) VALUES (2,4,'Van Gogh and Expressionism','Museum of Modern Art','2025-01-01');
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SELECT artist_id, exhibition_id, exhibition_title, exhibition_location, exhibition_start_date, ROW_NUMBER() OVER (PARTITION BY artist_id ORDER BY exhibition_start_date DESC) as rank FROM artist_exhibitions;
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Update the language column of the record with id 4 in the heritage_sites table to 'French'.
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CREATE TABLE heritage_sites (id INT,name VARCHAR(50),language VARCHAR(50)); INSERT INTO heritage_sites (id,name,language) VALUES (1,'Mesa Verde','English'),(2,'Old Quebec','French'),(3,'Chichen Itza','Mayan'),(4,'Angkor Wat','Khmer');
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UPDATE heritage_sites SET language = 'French' WHERE id = 4;
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What are the names of the heritage sites that were added to the list in the last 5 years, along with the year they were added?
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CREATE TABLE UNESCO_Heritage_Sites (id INT,site VARCHAR(100),year INT); INSERT INTO UNESCO_Heritage_Sites (id,site,year) VALUES (1,'Colosseum',1980),(2,'Great Wall',1987),(3,'Alhambra',1984);
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SELECT site, year FROM UNESCO_Heritage_Sites WHERE year >= YEAR(CURRENT_DATE) - 5;
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Delete all records in the flights table where the carrier is WU"
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CREATE TABLE flights (id INT PRIMARY KEY,carrier VARCHAR(3),flight_number INT,origin VARCHAR(3),destination VARCHAR(3),scheduled_departure TIMESTAMP,scheduled_arrival TIMESTAMP);
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DELETE FROM flights WHERE carrier = 'WU';
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How many marine species have been observed in the Indian Ocean, and what percentage of those are coral reef-dwelling species?
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CREATE TABLE marine_species (id INT,name VARCHAR(100),region VARCHAR(50),coral_reef_dweller BOOLEAN,biomass FLOAT);
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SELECT COUNT(ms.id) as total_species, 100.0 * SUM(CASE WHEN ms.coral_reef_dweller THEN 1 ELSE 0 END) / COUNT(ms.id) as coral_reef_percentage FROM marine_species ms WHERE ms.region = 'Indian Ocean';
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List all the pollution control initiatives from the 'PollutionProjects' table
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CREATE TABLE PollutionProjects (id INT PRIMARY KEY,name VARCHAR(255),location VARCHAR(255),start_date DATE,end_date DATE);
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SELECT name FROM PollutionProjects;
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What is the maximum average depth for ocean floor mapping project sites in the 'MarineResearch' schema?
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CREATE SCHEMA MarineResearch; CREATE TABLE OceanFloorMapping (site_id INT,location VARCHAR(255),avg_depth DECIMAL(5,2)); INSERT INTO OceanFloorMapping (site_id,location,avg_depth) VALUES (1,'SiteA',3500.50),(2,'SiteB',4600.25),(3,'SiteC',2100.00);
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SELECT MAX(avg_depth) FROM MarineResearch.OceanFloorMapping;
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Update the names of all news agencies from country X to their official English names.
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CREATE TABLE news_agencies (id INT,name TEXT,country TEXT); INSERT INTO news_agencies (id,name,country) VALUES (1,'Agency 1','Country X'); CREATE TABLE articles (id INT,title TEXT,agency_id INT); INSERT INTO articles (id,title,agency_id) VALUES (1,'Article 1',1);
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UPDATE news_agencies SET name = CASE WHEN country = 'Country X' THEN 'Official English Name 1' ELSE name END;
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What is the total monthly revenue of the 'Organic' product category?
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CREATE TABLE Sales (SaleID INT,Product VARCHAR(50),Category VARCHAR(50),SaleDate DATE); INSERT INTO Sales (SaleID,Product,Category,SaleDate) VALUES (1,'Orange','Organic','2022-01-05'),(2,'Banana','Organic','2022-01-10');
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SELECT SUM(SaleDate >= '2022-01-01' AND SaleDate < '2022-02-01') FROM Sales WHERE Category = 'Organic';
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How many mining-related accidents happened in Ontario or British Columbia?
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CREATE TABLE accident (id INT,location VARCHAR(50),type VARCHAR(20)); INSERT INTO accident (id,location,type) VALUES (1,'Ontario','mining'),(2,'British Columbia','drilling'),(3,'Alberta','extraction'),(4,'Quebec','prospecting');
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SELECT COUNT(*) FROM accident WHERE location IN ('Ontario', 'British Columbia') AND type LIKE '%mining%';
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What are the total amounts of copper and gold extracted by each company?
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CREATE TABLE company (id INT,name VARCHAR(255));CREATE TABLE copper_extraction (company_id INT,amount INT);CREATE TABLE gold_extraction (company_id INT,amount INT);
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SELECT c.name, SUM(ce.amount) as total_copper, SUM(ge.amount) as total_gold FROM company c LEFT JOIN copper_extraction ce ON c.id = ce.company_id LEFT JOIN gold_extraction ge ON c.id = ge.company_id GROUP BY c.name;
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What is the maximum environmental impact score for a mine site in Q1 2023?
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CREATE TABLE environmental_impact_q1_2023 (site_id INT,impact_score INT,impact_date DATE); INSERT INTO environmental_impact_q1_2023 (site_id,impact_score,impact_date) VALUES (5,70,'2023-01-15'),(5,75,'2023-02-20'),(5,80,'2023-03-31');
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SELECT MAX(impact_score) FROM environmental_impact_q1_2023 WHERE impact_date BETWEEN '2023-01-01' AND '2023-03-31';
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What is the total CO2 emission in the 'environmental_impact' table for the years 2018 and 2019?
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CREATE TABLE environmental_impact (id INT,year INT,co2_emission FLOAT); INSERT INTO environmental_impact (id,year,co2_emission) VALUES (1,2018,12000.00); INSERT INTO environmental_impact (id,year,co2_emission) VALUES (2,2019,15000.00); INSERT INTO environmental_impact (id,year,co2_emission) VALUES (3,2020,18000.00);
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SELECT SUM(co2_emission) FROM environmental_impact WHERE year IN (2018, 2019);
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What is the distribution of articles by date for a specific news agency?
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CREATE TABLE article_dates (id INT PRIMARY KEY,article_id INT,date DATE,FOREIGN KEY (article_id) REFERENCES articles(id));
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SELECT date, COUNT(*) as total_articles FROM article_dates JOIN articles ON article_dates.article_id = articles.id WHERE articles.agency_id = 1 GROUP BY date;
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What is the average ocean acidification level in each ocean?
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CREATE TABLE ocean_acidification_data (location text,level decimal); INSERT INTO ocean_acidification_data (location,level) VALUES ('Pacific Ocean',8.2),('Atlantic Ocean',8.3),('Indian Ocean',8.1);
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SELECT location, AVG(level) FROM ocean_acidification_data GROUP BY location;
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Get the last session date of each player in 'game_sessions' table.
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CREATE TABLE game_sessions (SessionID INT,PlayerID INT,SessionDate DATE); INSERT INTO game_sessions (SessionID,PlayerID,SessionDate) VALUES (1,1,'2021-06-01'); INSERT INTO game_sessions (SessionID,PlayerID,SessionDate) VALUES (2,2,'2021-06-10');
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SELECT PlayerID, MAX(SessionDate) AS LastSessionDate FROM game_sessions GROUP BY PlayerID;
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Identify the percentage of IoT devices with firmware version 3.x.x in the 'Asia' region.
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CREATE TABLE IoTDevices (region VARCHAR(255),device_id INT,firmware_version VARCHAR(255)); INSERT INTO IoTDevices (region,device_id,firmware_version) VALUES ('Asia',1001,'3.4.5'),('Asia',1002,'3.5.1'),('Asia',1003,'3.4.8'),('Asia',1004,'3.6.0'),('Europe',1005,'2.3.2'),('Europe',1006,'2.5.1');
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SELECT (COUNT(*) * 100.0 / (SELECT COUNT(*) FROM IoTDevices WHERE region = 'Asia')) AS Percentage FROM IoTDevices WHERE region = 'Asia' AND firmware_version LIKE '3.%';
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What is the maximum temperature recorded for crop 'Rice'?
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CREATE TABLE WeatherData (crop_type VARCHAR(20),temperature FLOAT,record_date DATE); INSERT INTO WeatherData (crop_type,temperature,record_date) VALUES ('Corn',22.5,'2022-01-01'); INSERT INTO WeatherData (crop_type,temperature,record_date) VALUES ('Rice',30.1,'2022-01-05');
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SELECT MAX(temperature) FROM WeatherData WHERE crop_type = 'Rice';
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How many public transport trips were taken in London, Paris, and Berlin for the last month, by hour?
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CREATE TABLE Trips (City VARCHAR(50),TripDate DATE,Hour INT,NumberOfTrips INT); INSERT INTO Trips (City,TripDate,Hour,NumberOfTrips) VALUES ('London','2022-04-11',1,500),('London','2022-04-11',2,600),('London','2022-04-11',3,700),('Paris','2022-04-11',1,400),('Paris','2022-04-11',2,550),('Paris','2022-04-11',3,600),('Berlin','2022-04-11',1,300),('Berlin','2022-04-11',2,450),('Berlin','2022-04-11',3,500);
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SELECT City, DATE_PART('hour', TripDate) as Hour, SUM(NumberOfTrips) as TotalTrips FROM Trips WHERE City IN ('London', 'Paris', 'Berlin') AND TripDate >= DATEADD(day, -30, CURRENT_DATE) GROUP BY City, Hour;
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What is the average property tax for single-family homes in each neighborhood?
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CREATE TABLE Neighborhoods (NeighborhoodID INT,Name VARCHAR(50),AveragePropertyTax FLOAT);CREATE TABLE Properties (PropertyID INT,NeighborhoodID INT,PropertyType VARCHAR(50),PropertyTax FLOAT);
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SELECT N.Name, AVG(P.PropertyTax) as AvgPropertyTax FROM Properties P JOIN Neighborhoods N ON P.NeighborhoodID = N.NeighborhoodID WHERE P.PropertyType = 'Single-Family' GROUP BY N.Name;
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What are the top 5 product categories with the highest average sales price across all stores?
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CREATE TABLE stores (store_id INT,store_name VARCHAR(255));CREATE TABLE products (product_id INT,product_category VARCHAR(255),price DECIMAL(10,2));
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SELECT product_category, AVG(price) as avg_price FROM products JOIN stores ON products.store_id = stores.store_id GROUP BY product_category ORDER BY avg_price DESC LIMIT 5;
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List the number of space missions launched by each country, grouped by the continent where the country is located, and show the total number of missions for each continent.
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CREATE TABLE Space_Missions (id INT,mission_name VARCHAR(255),country VARCHAR(255),launch_date DATE); CREATE TABLE Countries (id INT,country VARCHAR(255),continent VARCHAR(255));
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SELECT c.continent, COUNT(sm.country) as total_missions FROM Space_Missions sm JOIN Countries c ON sm.country = c.country GROUP BY c.continent;
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What is the count of missions involving a spacecraft with model Y, grouped by year?
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CREATE TABLE MissionSpacecraft (id INT,mission_year INT,spacecraft_model VARCHAR(20));
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SELECT mission_year, COUNT(*) FROM MissionSpacecraft WHERE spacecraft_model = 'Y' GROUP BY mission_year;
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Compare the number of electric and autonomous vehicles in New York and Los Angeles.
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CREATE TABLE if not exists UsEvaCount(state CHAR(2),city CHAR(10),ev_count INT,av_count INT); INSERT INTO UsEvaCount(state,city,ev_count,av_count) VALUES ('NY','NewYork',1200,500),('NY','NewYork',1250,550),('NY','LosAngeles',1500,600),('NY','LosAngeles',1450,650);
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SELECT city, ev_count, av_count FROM UsEvaCount WHERE state IN ('NY') AND city IN ('NewYork', 'LosAngeles') GROUP BY city;
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Identify policyholders who have not submitted any claims in the last 6 months.
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CREATE TABLE Policy (PolicyNumber INT,PolicyholderName VARCHAR(50)); CREATE TABLE Claim (ClaimID INT,PolicyNumber INT,ClaimDate DATE); INSERT INTO Policy VALUES (1,'John Doe'),(2,'Jane Smith'); INSERT INTO Claim VALUES (1,1,'2021-01-01'),(2,1,'2021-02-01'),(3,2,'2021-04-01');
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SELECT PolicyNumber, PolicyholderName FROM Policy WHERE PolicyNumber NOT IN (SELECT PolicyNumber FROM Claim WHERE ClaimDate > DATEADD(month, -6, GETDATE()));
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What is the average number of workplace safety incidents for each union in the healthcare industry?
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CREATE TABLE union_healthcare (union_id INT,union_name TEXT,industry TEXT,incidents INT); INSERT INTO union_healthcare (union_id,union_name,industry,incidents) VALUES (1,'Union X','Healthcare',20),(2,'Union Y','Healthcare',15),(3,'Union Z','Education',10);
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SELECT AVG(incidents) FROM union_healthcare WHERE industry = 'Healthcare';
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What is the average salary of female members in the 'construction' industry with a membership duration greater than 5 years?
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CREATE TABLE union_members (id INT,gender VARCHAR(10),industry VARCHAR(20),salary INT,membership_duration INT); INSERT INTO union_members (id,gender,industry,salary,membership_duration) VALUES (1,'Female','Construction',50000,6);
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SELECT AVG(salary) FROM union_members WHERE gender = 'Female' AND industry = 'Construction' AND membership_duration > 5;
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What is the average salary of workers in the 'Finance' industry who are not part of a union?
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CREATE TABLE workers (id INT,industry VARCHAR(255),salary FLOAT,union_member BOOLEAN); INSERT INTO workers (id,industry,salary,union_member) VALUES (1,'Manufacturing',50000.0,true),(2,'Finance',70000.0,false),(3,'Retail',30000.0,false);
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SELECT AVG(salary) FROM workers WHERE industry = 'Finance' AND union_member = false;
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What is the total capacity of all vessels?
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CREATE TABLE Vessels (ID VARCHAR(20),Name VARCHAR(20),Type VARCHAR(20),Capacity INT); INSERT INTO Vessels VALUES ('V024','Vessel X','Cargo',12000),('V025','Vessel Y','Cargo',15000),('V026','Vessel Z','Passenger',2000);
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SELECT SUM(Capacity) FROM Vessels;
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Find the unique languages spoken by visitors aged between 30 and 50 from South America.
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CREATE TABLE visitors (id INT,name VARCHAR(100),country VARCHAR(50),age INT,language VARCHAR(50)); INSERT INTO visitors (id,name,country,age,language) VALUES (1,'Jose Garcia','Brazil',40,'Portuguese'),(2,'Maria Rodriguez','Argentina',35,'Spanish');
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SELECT DISTINCT language FROM visitors WHERE age BETWEEN 30 AND 50 AND country LIKE 'South%';
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What is the number of unique visitors from each country?
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CREATE TABLE Countries (id INT,name VARCHAR(20)); ALTER TABLE Visitors ADD COLUMN country_id INT;
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SELECT Countries.name, COUNT(DISTINCT Visitors.id) FROM Visitors JOIN Countries ON Visitors.country_id = Countries.id GROUP BY Countries.name;
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What is the average recycling rate in South America?
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CREATE TABLE recycling_rates (country VARCHAR(50),recycling_rate DECIMAL(5,2)); INSERT INTO recycling_rates (country,recycling_rate) VALUES ('Brazil',50.0),('Argentina',40.0),('Colombia',35.0);
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SELECT AVG(recycling_rate) FROM recycling_rates WHERE country IN ('Brazil', 'Argentina', 'Colombia', 'Peru', 'Chile');
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Find the average daily water consumption in cubic meters for 'Los Angeles' during the drought of 2016
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CREATE TABLE drought_info (region VARCHAR(50),start_date DATE,end_date DATE); INSERT INTO drought_info (region,start_date,end_date) VALUES ('Los Angeles','2016-01-01','2016-12-31'); CREATE TABLE daily_consumption (region VARCHAR(50),date DATE,consumption FLOAT); INSERT INTO daily_consumption (region,date,consumption) VALUES ('Los Angeles','2016-01-01',1200),('Los Angeles','2016-01-02',1100),('Los Angeles','2016-01-03',1300);
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SELECT AVG(consumption) FROM daily_consumption WHERE region = 'Los Angeles' AND date BETWEEN '2016-01-01' AND '2016-12-31';
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How many water treatment facilities are there in each country, and what is their distribution by continent?
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CREATE TABLE facilities (id INT,facility_name VARCHAR(50),country VARCHAR(50),total_employees INT); INSERT INTO facilities (id,facility_name,country,total_employees) VALUES (1,'Water Treatment Plant 1','Brazil',25); INSERT INTO facilities (id,facility_name,country,total_employees) VALUES (2,'Water Treatment Plant 2','India',30);
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SELECT country, COUNT(*) as facility_count, CONTINENT(location) as continent FROM facilities JOIN countries ON facilities.country = countries.country_name GROUP BY country, continent;
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What is the explainability score for each AI algorithm, partitioned by algorithm type, ordered by score in descending order?
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CREATE TABLE ai_algorithms_explainability (algorithm_id INT,algorithm_name VARCHAR(50),explainability_score DECIMAL(5,2)); INSERT INTO ai_algorithms_explainability (algorithm_id,algorithm_name,explainability_score) VALUES (1,'Decision Tree',0.93),(2,'Logistic Regression',0.91),(3,'K-Nearest Neighbors',0.87),(4,'Naive Bayes',0.85);
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SELECT algorithm_name, AVG(explainability_score) as avg_explainability_score FROM ai_algorithms_explainability GROUP BY algorithm_name ORDER BY avg_explainability_score DESC;
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Update the name of the project to 'Solar Irrigation' in the 'rural_projects' table
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CREATE TABLE rural_projects (id INT,project_name VARCHAR(255),country VARCHAR(255));
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UPDATE rural_projects SET project_name = 'Solar Irrigation' WHERE id = 1;
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What was the sum of agricultural innovation metrics reported in Senegal in 2020?
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CREATE TABLE Metrics (id INT,metric_id INT,metric_type VARCHAR(20),country VARCHAR(20),report_date DATE); INSERT INTO Metrics (id,metric_id,metric_type,country,report_date) VALUES (1,5001,'Agricultural Innovation','Senegal','2020-01-01'),(2,5002,'Economic Diversification','Senegal','2020-02-15'),(3,5003,'Agricultural Innovation','Senegal','2020-03-31');
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SELECT SUM(CASE WHEN metric_type = 'Agricultural Innovation' THEN 1 ELSE 0 END) FROM Metrics WHERE country = 'Senegal' AND YEAR(report_date) = 2020;
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Remove all records for aircraft models that were never involved in a safety incident from the flight_safety table
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CREATE TABLE flight_safety (id INT PRIMARY KEY,aircraft_model VARCHAR(100),manufacturer VARCHAR(100),severity VARCHAR(50),report_date DATE);
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DELETE FROM flight_safety WHERE aircraft_model NOT IN (SELECT aircraft_model FROM flight_safety GROUP BY aircraft_model HAVING COUNT(*) > 0);
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What is the average age of all active astronauts by country of origin?
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CREATE TABLE Astronauts (AstronautID INT,CountryOfOrigin VARCHAR(50),Active BOOLEAN,Age INT);
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SELECT CountryOfOrigin, AVG(Age) AS AvgAge FROM Astronauts WHERE Active = TRUE GROUP BY CountryOfOrigin;
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Count the number of distinct animal types in the 'animal_population' table.
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CREATE TABLE animal_population (animal_id INT,animal_type VARCHAR(10),age INT); INSERT INTO animal_population (animal_id,animal_type,age) VALUES (1,'lion',3); INSERT INTO animal_population (animal_id,animal_type,age) VALUES (2,'tiger',4); INSERT INTO animal_population (animal_id,animal_type,age) VALUES (3,'lion',5);
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SELECT COUNT(DISTINCT animal_type) FROM animal_population;
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What is the total number of animals adopted by each community?
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CREATE TABLE CommunityEducation(Community VARCHAR(20),AnimalsAdopted INT); INSERT INTO CommunityEducation VALUES ('CommunityA',35),('CommunityB',28),('CommunityC',42);
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SELECT Community, SUM(AnimalsAdopted) FROM CommunityEducation GROUP BY Community;
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Count the number of aquatic farms in each country from the 'farms' table.
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CREATE TABLE farms (id INT PRIMARY KEY,name VARCHAR(50),species VARCHAR(50),country VARCHAR(50),size INT); INSERT INTO farms (id,name,species,country,size) VALUES (1,'Farm A','Salmon','Norway',500),(2,'Farm B','Tilapia','Egypt',250),(3,'Farm C','Cod','Canada',800),(4,'Farm D','Prawns','India',300);
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SELECT country, COUNT(*) FROM farms GROUP BY country;
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Determine the maximum sustainable yield of Catfish in the Pacific Ocean in 2024.
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CREATE TABLE msy (species VARCHAR(255),msy_value FLOAT,year INT,region VARCHAR(255),PRIMARY KEY (species,year,region)); INSERT INTO msy (species,msy_value,year,region) VALUES ('Catfish',22000,2024,'Pacific Ocean'),('Tuna',35000,2024,'Pacific Ocean'),('Salmon',18000,2024,'Atlantic Ocean');
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SELECT msy_value FROM msy WHERE species = 'Catfish' AND year = 2024 AND region = 'Pacific Ocean';
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What is the average stocking density of Tilapia in freshwater farms in Indonesia?
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CREATE TABLE freshwater_farms (farmer_id INT,fish_species TEXT,stocking_density FLOAT); INSERT INTO freshwater_farms (farmer_id,fish_species,stocking_density) VALUES (1,'Tilapia',1.5),(2,'Catfish',2.0),(3,'Tilapia',2.5);
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SELECT AVG(stocking_density) FROM freshwater_farms WHERE fish_species = 'Tilapia' AND country = 'Indonesia';
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What was the total attendance at dance programs by age group in 2020?
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CREATE TABLE Attendance (id INT,age_group VARCHAR(10),program VARCHAR(20),attendance INT); INSERT INTO Attendance (id,age_group,program,attendance) VALUES (1,'5-10','Dance',50),(2,'11-15','Dance',75),(3,'16-20','Dance',100);
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SELECT program, age_group, SUM(attendance) as total_attendance FROM Attendance WHERE program = 'Dance' AND YEAR(event_date) = 2020 GROUP BY program, age_group;
|
What is the average price per gram of concentrates for each producer in California?
|
CREATE TABLE Producers (ProducerID INT,Name VARCHAR(100),State VARCHAR(100)); CREATE TABLE Products (ProductID INT,ProductName VARCHAR(100),ProducerID INT,PricePerGram DECIMAL(5,2),Type VARCHAR(100));
|
SELECT P.Name, AVG(P.PricePerGram) as AvgPricePerGram FROM Products P JOIN Producers PR ON P.ProducerID = PR.ProducerID WHERE PR.State = 'California' AND P.Type = 'Concentrates' GROUP BY P.Name;
|
How many cases were handled by attorneys who identify as Latinx and have more than 5 years of experience?
|
CREATE TABLE attorneys (id INT,name VARCHAR(50),years_of_experience INT,ethnicity VARCHAR(50)); INSERT INTO attorneys (id,name,years_of_experience,ethnicity) VALUES (1,'John Doe',12,'White'); INSERT INTO attorneys (id,name,years_of_experience,ethnicity) VALUES (2,'Jane Smith',3,'White'); INSERT INTO attorneys (id,name,years_of_experience,ethnicity) VALUES (3,'Carlos Rodriguez',7,'Latinx'); INSERT INTO attorneys (id,name,years_of_experience,ethnicity) VALUES (4,'Maria Garcia',12,'Latinx');
|
SELECT COUNT(*) FROM attorneys WHERE ethnicity = 'Latinx' AND years_of_experience > 5;
|
Update the safety protocol for 'Product K' from 'Protocol 4' to 'Protocol 7' in the safety_protocols table.
|
CREATE TABLE chemical_products (id INT,name TEXT); CREATE TABLE safety_protocols (id INT,product_id INT,protocol TEXT);
|
UPDATE safety_protocols SET protocol = 'Protocol 7' WHERE product_id = (SELECT id FROM chemical_products WHERE name = 'Product K') AND protocol = 'Protocol 4';
|
What is the production cost of each chemical product, grouped by the manufacturer?
|
CREATE TABLE ChemicalProducts (ProductID INT,ProductName TEXT,Manufacturer TEXT,ProductionCost DECIMAL(5,2)); INSERT INTO ChemicalProducts (ProductID,ProductName,Manufacturer,ProductionCost) VALUES (1,'Product A','Manufacturer X',50.5),(2,'Product B','Manufacturer Y',75.3),(3,'Product C','Manufacturer X',25.5),(4,'Product D','Manufacturer Z',150.3);
|
SELECT Manufacturer, SUM(ProductionCost) AS TotalProductionCost FROM ChemicalProducts GROUP BY Manufacturer;
|
What is the number of 'climate communication' campaigns launched in 'Europe' in '2022' from the 'communication' table?
|
CREATE TABLE communication (region VARCHAR(255),campaigns INT,year INT);
|
SELECT COUNT(*) FROM communication WHERE region = 'Europe' AND year = 2022;
|
What is the total funding allocated for climate change adaptation projects in 2018 and 2020?
|
CREATE TABLE climate_adaptation_funding(project_id INT,year INT,amount FLOAT); INSERT INTO climate_adaptation_funding (project_id,year,amount) VALUES (30,2018,75000.0),(31,2019,90000.0),(32,2020,60000.0);
|
SELECT SUM(amount) FROM climate_adaptation_funding WHERE year IN (2018, 2020);
|
Find the drugs and their respective total sales for rare diseases indication with sales greater than the average sales for infectious diseases.
|
CREATE TABLE sales (id INT,drug_id INT,quarter INT,year INT,revenue FLOAT); INSERT INTO sales (id,drug_id,quarter,year,revenue) VALUES (1,1,1,2022,1500000); CREATE TABLE drugs (id INT,name VARCHAR(50),company VARCHAR(50),indication VARCHAR(50)); INSERT INTO drugs (id,name,company,indication) VALUES (1,'DrugA','ABC Corp','Rare_Diseases');
|
SELECT s.drug_id, d.name, SUM(s.revenue) as total_sales FROM sales s JOIN drugs d ON s.drug_id = d.id WHERE d.indication = 'Rare_Diseases' GROUP BY s.drug_id HAVING total_sales > (SELECT AVG(s2.revenue) FROM sales s2 JOIN drugs d2 ON s2.drug_id = d2.id WHERE d2.indication = 'Infectious_Diseases')
|
What is the total number of healthcare providers by type?
|
CREATE TABLE providers (provider_id INT,provider_type VARCHAR(20)); INSERT INTO providers (provider_id,provider_type) VALUES (1,'Physician'),(2,'Nurse Practitioner'),(3,'Physician Assistant');
|
SELECT provider_type, COUNT(*) as total_providers FROM providers GROUP BY provider_type;
|
Delete all records from the "company_profiles" table where the company's founding year is before 2000
|
CREATE TABLE company_profiles (company_name VARCHAR(255),founding_year INT,diversity_metric FLOAT);
|
DELETE FROM company_profiles WHERE founding_year < 2000;
|
Drop the disability accommodations table
|
CREATE TABLE disability_accommodations (id INT PRIMARY KEY,student_id INT,accommodation_type VARCHAR(255),start_date DATE,end_date DATE);
|
DROP TABLE disability_accommodations;
|
How many marine species are endemic to the Coral Triangle?
|
CREATE TABLE marine_species (id INT,species VARCHAR(255),endemic_coral_triangle BOOLEAN); INSERT INTO marine_species (id,species,endemic_coral_triangle) VALUES (1,'Clownfish',TRUE);
|
SELECT COUNT(*) FROM marine_species WHERE endemic_coral_triangle = TRUE
|
How many smart contracts were deployed each month in 2023?
|
CREATE TABLE smart_contracts (contract_address VARCHAR(42),deployment_date DATE); INSERT INTO smart_contracts (contract_address,deployment_date) VALUES ('0x123','2023-01-01'),('0x456','2023-01-15'),('0x789','2023-02-01'),('0xabc','2023-02-15'),('0xdef','2023-03-01');
|
SELECT EXTRACT(MONTH FROM deployment_date) AS month, COUNT(*) FROM smart_contracts GROUP BY month ORDER BY month;
|
Update carbon sequestration data for India in 2021
|
CREATE TABLE carbon_sequestration (country_code CHAR(3),year INT,sequestration FLOAT); INSERT INTO carbon_sequestration (country_code,year,sequestration) VALUES ('IND',2021,1.2),('IND',2020,1.1),('CHN',2021,4.1),('CHN',2020,3.9);
|
UPDATE carbon_sequestration SET sequestration = 1.3 WHERE country_code = 'IND' AND year = 2021;
|
What is the total volume of timber sold by each salesperson, broken down by month?
|
CREATE TABLE salesperson (salesperson_id INT,name TEXT,region TEXT); INSERT INTO salesperson (salesperson_id,name,region) VALUES (1,'John Doe','North'),(2,'Jane Smith','South'); CREATE TABLE timber_sales (sales_id INT,salesperson_id INT,volume REAL,sale_date DATE); INSERT INTO timber_sales (sales_id,salesperson_id,volume,sale_date) VALUES (1,1,120,'2021-01-01'),(2,1,150,'2021-02-01'),(3,2,180,'2021-01-01');
|
SELECT salesperson_id, DATE_PART('month', sale_date) as month, SUM(volume) as total_volume FROM timber_sales JOIN salesperson ON timber_sales.salesperson_id = salesperson.salesperson_id GROUP BY salesperson_id, month ORDER BY salesperson_id, month;
|
How many products are sourced from fair-trade suppliers?
|
CREATE TABLE products (product_id INT PRIMARY KEY,fair_trade BOOLEAN); INSERT INTO products (product_id,fair_trade) VALUES (1,true),(2,false),(3,true),(4,false);
|
SELECT COUNT(*) FROM products WHERE fair_trade = true;
|
What is the average weight of ingredients for a given product?
|
CREATE TABLE ingredients (ingredient_id INT,product_id INT,weight FLOAT); INSERT INTO ingredients VALUES (1,1,2.5),(2,1,3.5),(3,2,1.5),(4,2,4.5);
|
SELECT AVG(weight) FROM ingredients WHERE product_id = 1;
|
What is the percentage of cruelty-free haircare products in the European market?
|
CREATE TABLE products(product_id INT,product_name VARCHAR(50),is_cruelty_free BOOLEAN,product_category VARCHAR(50)); INSERT INTO products VALUES (5,'Argan Oil Shampoo',TRUE,'Haircare'); INSERT INTO products VALUES (6,'Keratin Conditioner',FALSE,'Haircare'); CREATE TABLE sales(product_id INT,sale_date DATE,quantity INT,country VARCHAR(50)); INSERT INTO sales VALUES (5,'2021-03-25',20,'DE'); INSERT INTO sales VALUES (6,'2021-03-26',10,'FR');
|
SELECT ROUND(COUNT(CASE WHEN products.is_cruelty_free THEN 1 END)/COUNT(*) * 100, 2) as percentage FROM products JOIN sales ON products.product_id = sales.product_id WHERE products.product_category = 'Haircare' AND sales.country = 'Europe';
|
List all disaster types and their respective average preparedness scores, for the year 2017, from the 'DisasterPreparedness' table.
|
CREATE TABLE DisasterPreparedness (id INT,year INT,disasterType VARCHAR(30),score INT);
|
SELECT disasterType, AVG(score) FROM DisasterPreparedness WHERE year = 2017 GROUP BY disasterType;
|
What is the percentage of crimes reported in the city of Miami that were violent crimes in the year 2019?
|
CREATE TABLE crimes (id INT,city VARCHAR(20),year INT,violent_crime BOOLEAN); INSERT INTO crimes (id,city,year,violent_crime) VALUES (1,'Miami',2019,true),(2,'Miami',2019,false),(3,'Miami',2019,true);
|
SELECT (COUNT(*) FILTER (WHERE violent_crime)) * 100.0 / COUNT(*) FROM crimes WHERE city = 'Miami' AND year = 2019;
|
What is the total number of military equipment types maintained by each division?
|
CREATE TABLE division (division_id INT,division_name VARCHAR(50)); INSERT INTO division (division_id,division_name) VALUES (1,'Aviation'),(2,'Ground'),(3,'Naval'); CREATE TABLE equipment (equipment_id INT,equipment_name VARCHAR(50),division_id INT); INSERT INTO equipment (equipment_id,equipment_name,division_id) VALUES (1,'F-16 Fighting Falcon',1),(2,'M1 Abrams',2),(3,'USS Gerald R. Ford',3);
|
SELECT division_id, COUNT(DISTINCT equipment_name) as total_equipment_types FROM equipment GROUP BY division_id;
|
Rank the cargoes by their quantities in descending order, partitioned by the vessel they belong to.
|
CREATE TABLE Cargo (CargoID INT,CargoName VARCHAR(50),Quantity INT,VesselID INT); INSERT INTO Cargo (CargoID,CargoName,Quantity,VesselID) VALUES (1,'Electronics',5000,1); INSERT INTO Cargo (CargoID,CargoName,Quantity,VesselID) VALUES (2,'Clothing',3000,2); CREATE TABLE Vessel (VesselID INT,VesselName VARCHAR(50),GrossTonnage INT); INSERT INTO Vessel (VesselID,VesselName,GrossTonnage) VALUES (1,'Ever Ace',235000); INSERT INTO Vessel (VesselID,VesselName,GrossTonnage) VALUES (2,'Algeciras',128000);
|
SELECT CargoName, Quantity, RANK() OVER (PARTITION BY VesselID ORDER BY Quantity DESC) AS Rank FROM Cargo;
|
What is the average weight of cargo for vessels in the 'Tanker' type that were built after 2000?
|
CREATE TABLE ships (id INT,name VARCHAR(50),type VARCHAR(50),year_built INT,max_capacity INT,port_id INT); CREATE TABLE cargos (id INT,description VARCHAR(50),weight FLOAT,port_id INT,ship_id INT); CREATE VIEW ship_cargo AS SELECT s.name AS ship_name,c.description AS cargo_description,c.weight FROM ships s JOIN cargos c ON s.id = c.ship_id;
|
SELECT AVG(c.weight) AS avg_weight FROM ships s JOIN cargos c ON s.id = c.ship_id WHERE s.type = 'Tanker' AND s.year_built > 2000;
|
What is the total amount spent on raw materials for the 'textile' industry for the entire year of 2021?
|
CREATE TABLE expenses (expense_id INT,date DATE,category VARCHAR(20),amount FLOAT); INSERT INTO expenses (expense_id,date,category,amount) VALUES (1,'2021-01-01','textile',2500),(2,'2021-05-15','tooling',1500),(3,'2021-12-31','textile',5000);
|
SELECT SUM(amount) FROM expenses WHERE category = 'textile' AND date BETWEEN '2021-01-01' AND '2021-12-31';
|
Identify the excavation site with the least number of bone fragments.
|
CREATE TABLE SiteN (site_id INT,site_name VARCHAR(20),artifact_type VARCHAR(20),quantity INT); INSERT INTO SiteN (site_id,site_name,artifact_type,quantity) VALUES (1,'SiteN','Bone Fragments',5),(2,'SiteO','Pottery',20),(3,'SiteP','Bone Fragments',15);
|
SELECT site_name FROM SiteN WHERE artifact_type = 'Bone Fragments' GROUP BY site_name HAVING SUM(quantity) = (SELECT MIN(quantity) FROM (SELECT SUM(quantity) as quantity FROM SiteN WHERE artifact_type = 'Bone Fragments' GROUP BY site_name) as subquery);
|
What is the total number of patients diagnosed with 'Anxiety' or 'Depression' in 'RuralHealthFacility8'?
|
CREATE TABLE RuralHealthFacility8 (id INT,name TEXT,diagnosis TEXT); INSERT INTO RuralHealthFacility8 (id,name,diagnosis) VALUES (1,'Ivan Purple','Anxiety'),(2,'Judy Orange','Depression');
|
SELECT COUNT(*) FROM RuralHealthFacility8 WHERE diagnosis IN ('Anxiety', 'Depression');
|
How many unique social causes has investor ABC supported?
|
CREATE TABLE investor_activities (investor VARCHAR(20),cause VARCHAR(30)); INSERT INTO investor_activities (investor,cause) VALUES ('XYZ','climate change'),('XYZ','poverty reduction'),('ABC','climate change');
|
SELECT COUNT(DISTINCT cause) FROM investor_activities WHERE investor = 'ABC';
|
List all social impact investments in the Agriculture sector with ESG scores above 85, ordered by investment date and ESG score, including only investments made by French investors.
|
CREATE TABLE SocialImpactInvestments (InvestmentID INT,InvestmentDate DATE,Sector VARCHAR(20),ESGScore INT,InvestorCountry VARCHAR(20)); INSERT INTO SocialImpactInvestments VALUES (1,'2021-01-01','Agriculture',86,'France'),(2,'2021-02-01','Healthcare',75,'Germany'),(3,'2021-03-01','Agriculture',82,'France');
|
SELECT * FROM SocialImpactInvestments WHERE Sector = 'Agriculture' AND ESGScore > 85 AND InvestorCountry = 'France' ORDER BY InvestmentDate, ESGScore DESC;
|
How many unique volunteers participated in programs in New York?
|
CREATE TABLE VolunteerEvents (EventID INT,EventName TEXT,Location TEXT,EventType TEXT); INSERT INTO VolunteerEvents (EventID,EventName,Location,EventType) VALUES (1,'Tutoring Session','Texas','Education'),(2,'Coding Workshop','New York','Education'); CREATE TABLE VolunteerHours (HourID INT,VolunteerID INT,EventID INT,Hours INT,HourDate DATE); INSERT INTO VolunteerHours (HourID,VolunteerID,EventID,Hours,HourDate) VALUES (1,1,1,5,'2022-01-01'),(2,2,1,6,'2022-01-01');
|
SELECT COUNT(DISTINCT VolunteerID) FROM VolunteerHours JOIN VolunteerEvents ON VolunteerHours.EventID = VolunteerEvents.EventID WHERE VolunteerEvents.Location = 'New York';
|
How many professional development courses did each teacher complete, ordered by the number of courses completed?
|
CREATE TABLE teacher_pd (teacher_id INT,course_id INT); INSERT INTO teacher_pd (teacher_id,course_id) VALUES (1,1001),(2,1002),(3,1003),(4,1004),(5,1005),(1,1006),(2,1007);
|
SELECT teacher_id, COUNT(course_id) as num_courses FROM teacher_pd GROUP BY teacher_id ORDER BY num_courses DESC;
|
How many solar energy projects have been completed in Germany and Spain?
|
CREATE TABLE solar_projects (country VARCHAR(20),completed BOOLEAN); INSERT INTO solar_projects (country,completed) VALUES ('Germany',true),('Germany',true),('Spain',true),('Spain',true),('Spain',true);
|
SELECT COUNT(*) FROM solar_projects WHERE country IN ('Germany', 'Spain') AND completed = true;
|
Insert a new record into the "carbon_prices" table for the date 2022-02-01 with a price of 25.25
|
CREATE TABLE carbon_prices (id INT,date DATE,price FLOAT);
|
INSERT INTO carbon_prices (id, date, price) VALUES (1, '2022-02-01', 25.25);
|
Insert new records into the 'renewable_energy_production' table for wind and solar production in 'Texas' and 'California'
|
CREATE TABLE renewable_energy_production (id INT PRIMARY KEY,source VARCHAR(255),state VARCHAR(255),production_gwh FLOAT);
|
INSERT INTO renewable_energy_production (source, state, production_gwh) VALUES ('wind', 'Texas', 50), ('solar', 'Texas', 75), ('wind', 'California', 60), ('solar', 'California', 80);
|
What are the names of cricket players who have scored a century in Australia?
|
CREATE TABLE Matches (MatchID INT,Team1 VARCHAR(50),Team2 VARCHAR(50),Venue VARCHAR(50),Country VARCHAR(50)); INSERT INTO Matches (MatchID,Team1,Team2,Venue,Country) VALUES (1,'Australia','India','Melbourne Cricket Ground','Australia'); CREATE TABLE Players (PlayerID INT,Name VARCHAR(50),Team VARCHAR(50),Country VARCHAR(50)); INSERT INTO Players (PlayerID,Name,Team,Country) VALUES (1,'Virat Kohli','India','India'); CREATE TABLE Scores (ScoreID INT,Player VARCHAR(50),Runs INT,MatchID INT); INSERT INTO Scores (ScoreID,Player,Runs,MatchID) VALUES (1,'Virat Kohli',100,1);
|
SELECT DISTINCT P.Name FROM Players P INNER JOIN Scores S ON P.PlayerID = S.Player WHERE S.Runs = 100 AND S.MatchID IN (SELECT MatchID FROM Matches WHERE Venue = 'Melbourne Cricket Ground' AND Country = 'Australia');
|
List the number of advocacy campaigns and their total budget for each year.
|
CREATE TABLE years (id INT,name VARCHAR(255)); CREATE TABLE campaigns (id INT,year_id INT,name VARCHAR(255),budget FLOAT);
|
SELECT y.name as year_name, COUNT(campaigns.id) as campaign_count, SUM(campaigns.budget) as total_budget FROM years y LEFT JOIN campaigns ON y.id = campaigns.year_id GROUP BY y.id;
|
What is the rank of each volunteer by age within their skill?
|
CREATE TABLE volunteers (id INT,name TEXT,age INT,gender TEXT,skill TEXT,location TEXT); INSERT INTO volunteers (id,name,age,gender,skill,location) VALUES (1,'John Doe',30,'Male','Medical','New York'); INSERT INTO volunteers (id,name,age,gender,skill,location) VALUES (2,'Jane Smith',28,'Female','Engineering','Los Angeles');
|
SELECT *, RANK() OVER (PARTITION BY skill ORDER BY age) as rank FROM volunteers;
|
How many technology accessibility projects were launched in total?
|
CREATE TABLE acc_proj (name TEXT,launch_year INTEGER,accessible TEXT); INSERT INTO acc_proj (name,launch_year,accessible) VALUES ('AccProj1',2021,'yes'),('AccProj2',2022,'no'),('AccProj3',2022,'yes');
|
SELECT COUNT(*) FROM acc_proj WHERE accessible = 'yes';
|
How many trains in Tokyo have a delay greater than 5 minutes?
|
CREATE TABLE trains (id INT,city VARCHAR(50),delay TIME); INSERT INTO trains (id,city,delay) VALUES (1,'Tokyo','00:07'),(2,'Tokyo','00:03'),(3,'Paris','00:10'),(4,'Paris','00:02');
|
SELECT COUNT(*) FROM trains WHERE city = 'Tokyo' AND delay > '00:05:00';
|
What is the total amount spent on recycled materials in the last 6 months?
|
CREATE TABLE expenses(expense_id INT,date DATE,material VARCHAR(20),amount DECIMAL(5,2)); INSERT INTO expenses(expense_id,date,material,amount) VALUES(1,'2022-01-01','recycled cotton',100.00),(2,'2022-01-15','recycled polyester',150.00),(3,'2022-02-01','recycled cotton',200.00);
|
SELECT SUM(amount) FROM expenses WHERE material IN ('recycled cotton', 'recycled polyester') AND date >= DATE_SUB(CURRENT_DATE, INTERVAL 6 MONTH);
|
What is the maximum financial capability score in Africa?
|
CREATE TABLE financial_capability (client_id INT,country VARCHAR(50),score DECIMAL(3,2)); INSERT INTO financial_capability (client_id,country,score) VALUES (1,'South Africa',82.7),(2,'Egypt',78.4),(3,'Nigeria',88.3);
|
SELECT MAX(score) FROM financial_capability WHERE country = 'Africa';
|
Delete all records of product Z from the Food table.
|
CREATE TABLE Food (FoodID varchar(10),FoodName varchar(20)); INSERT INTO Food VALUES ('Z','Product Z');
|
DELETE FROM Food WHERE FoodID = 'Z';
|
Find the top 2 most expensive fruits in the "Produce_2022" table
|
CREATE TABLE Produce_2022 (id INT,name VARCHAR(50),type VARCHAR(20),price DECIMAL(5,2)); INSERT INTO Produce_2022 (id,name,type,price) VALUES (1,'Mangoes','Organic',2.49),(2,'Pineapples','Organic',3.59),(3,'Avocados','Organic',1.99),(4,'Strawberries','Organic',4.99);
|
SELECT name, price FROM Produce_2022 WHERE type = 'Organic' AND name LIKE 'Fruits' ORDER BY price DESC LIMIT 2;
|
What is the minimum and maximum serving size for vegan meals in the United States?
|
CREATE TABLE MealSizes(id INT,name TEXT,serving_size INT,is_vegan BOOLEAN,country TEXT); INSERT INTO MealSizes(id,name,serving_size,is_vegan,country) VALUES (1,'Vegan Pizza',250,TRUE,'USA'),(2,'Chickpea Curry',380,TRUE,'USA');
|
SELECT MIN(serving_size), MAX(serving_size) FROM MealSizes WHERE is_vegan = TRUE AND country = 'USA';
|
What is the maximum delivery time for packages shipped from the Mumbai warehouse in Q4 2021?
|
CREATE TABLE deliveries (id INT,delivery_time FLOAT,warehouse VARCHAR(20),quarter INT); INSERT INTO deliveries (id,delivery_time,warehouse,quarter) VALUES (1,10.0,'Mumbai',4),(2,15.0,'Delhi',1),(3,12.0,'Mumbai',4); CREATE TABLE warehouses (id INT,name VARCHAR(20)); INSERT INTO warehouses (id,name) VALUES (1,'Mumbai'),(2,'Delhi');
|
SELECT MAX(delivery_time) FROM deliveries d JOIN warehouses w ON d.warehouse = w.name WHERE w.name = 'Mumbai' AND d.quarter = 4;
|
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