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What is the minimum range of electric vehicles in the 'EVSpecs' database produced by Nissan?
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CREATE TABLE EVSpecs (Id INT,Make VARCHAR(50),Model VARCHAR(50),Range FLOAT);
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SELECT MIN(Range) FROM EVSpecs WHERE Make = 'Nissan';
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How many vegan items are there in the inventory?
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CREATE TABLE inventory (item_id INT,item_name TEXT,is_vegan BOOLEAN); INSERT INTO inventory (item_id,item_name,is_vegan) VALUES (1,'Hamburger',false),(2,'Veggie Pizza',true),(3,'Chicken Sandwich',false);
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SELECT COUNT(*) FROM inventory WHERE is_vegan = true;
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List all airports with a runway length greater than 3000 meters
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CREATE TABLE Airports (airport_id int,airport_name varchar(255),runway_length decimal(10,2),location varchar(255));
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SELECT airport_id, airport_name, runway_length, location FROM Airports WHERE runway_length > 3000;
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What is the earliest therapy session date?
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CREATE TABLE therapy_sessions (id INT,patient_id INT,session_date DATE);
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SELECT MIN(session_date) FROM therapy_sessions;
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How many clients have opened a new account in the last month?
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CREATE TABLE clients (id INT,last_account_opening DATE); INSERT INTO clients (id,last_account_opening) VALUES (1,'2022-04-15'),(2,'2022-03-01'),(3,'2022-05-05');
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SELECT COUNT(*) FROM clients WHERE last_account_opening BETWEEN DATE_SUB(CURRENT_DATE, INTERVAL 1 MONTH) AND CURRENT_DATE;
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Which brands have discontinued the most products in the last year?
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CREATE TABLE Discontinued (Brand VARCHAR(50),Product VARCHAR(50),Discontinued_Date DATE); INSERT INTO Discontinued (Brand,Product,Discontinued_Date) VALUES ('BrandA','Product1','2022-01-01'),('BrandA','Product2','2022-02-01'),('BrandB','Product3','2022-03-01');
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SELECT Brand, COUNT(Product) FROM Discontinued WHERE Discontinued_Date >= DATEADD(year, -1, GETDATE()) GROUP BY Brand ORDER BY COUNT(Product) DESC;
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What is the average CO2 emissions reduction (in metric tons) for each carbon offset project?
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CREATE TABLE carbon_offset_projects (id INT,project_name VARCHAR(255),co2_emissions_reduction FLOAT);
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SELECT AVG(co2_emissions_reduction) FROM carbon_offset_projects;
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Count the number of vessels that arrived in a Canadian port with cargo in the last month.
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CREATE TABLE Vessels (VesselID INT,VesselName TEXT); CREATE TABLE Ports (PortID INT,PortName TEXT,Country TEXT); CREATE TABLE Cargo (VesselID INT,PortID INT,ArrivalDate DATE); INSERT INTO Ports (PortID,PortName,Country) VALUES (1,'Vancouver','Canada'),(2,'Montreal','Canada'); INSERT INTO Vessels (VesselID,VesselName) VALUES (1,'Sea Tiger'),(2,'Ocean Wave'),(3,'River Queen'),(4,'Blue Whale'); INSERT INTO Cargo (VesselID,PortID,ArrivalDate) VALUES (1,1,'2022-07-01'),(1,2,'2022-07-15'),(2,1,'2022-07-20'),(3,2,'2022-07-25'),(4,1,'2022-07-30');
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SELECT COUNT(*) FROM Cargo INNER JOIN Vessels ON Cargo.VesselID = Vessels.VesselID INNER JOIN Ports ON Cargo.PortID = Ports.PortID WHERE ArrivalDate >= DATE_SUB(CURRENT_DATE, INTERVAL 1 MONTH) AND Country = 'Canada';
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What is the average temperature in each Arctic region for the last 5 years?
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CREATE TABLE temperature_data (id INT,arctic_region VARCHAR(255),date DATE,temperature FLOAT); INSERT INTO temperature_data (id,arctic_region,date,temperature) VALUES (1,'North Pole','2018-01-01',-25.0),(2,'Canada','2018-01-01',-20.0);
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SELECT arctic_region, AVG(temperature) FROM temperature_data WHERE date >= DATEADD(year, -5, CURRENT_DATE) GROUP BY arctic_region;
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Which ocean has the greatest number of marine mammal species?
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CREATE TABLE marine_mammals (name VARCHAR(255),species_count INT,ocean VARCHAR(255)); INSERT INTO marine_mammals (name,species_count,ocean) VALUES ('Dolphins',42,'Pacific');
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SELECT ocean, COUNT(*) as total FROM marine_mammals GROUP BY ocean ORDER BY total DESC LIMIT 1;
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Find the names of refugees who received support from organizations based in France or Germany?
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CREATE TABLE refugees (id INT,name TEXT,country TEXT); CREATE TABLE support (id INT,refugee_id INT,organization_country TEXT); INSERT INTO refugees (id,name,country) VALUES (1,'RefugeeA','Syria'),(2,'RefugeeB','Iraq'); INSERT INTO support (id,refugee_id,organization_country) VALUES (1,1,'France'),(2,1,'Germany'),(3,2,'France');
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SELECT DISTINCT r.name FROM refugees r JOIN support s ON r.id = s.refugee_id WHERE s.organization_country IN ('France', 'Germany');
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Which Green building certifications were issued in the European Union?
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CREATE TABLE green_buildings (building_id INT,building_name TEXT,country TEXT,certification TEXT); INSERT INTO green_buildings (building_id,building_name,country,certification) VALUES (1,'Green Building 1','Germany','LEED'),(2,'Green Building 2','France','BREEAM');
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SELECT country, certification FROM green_buildings WHERE country LIKE 'Europe%';
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How many network infrastructure investments were made in a specific country in the last year?
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CREATE TABLE network_investments (investment_id INT,investment_date DATE,country VARCHAR(50),investment_amount INT);
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SELECT country, COUNT(investment_id) FROM network_investments WHERE investment_date >= DATE_SUB(CURRENT_DATE, INTERVAL 1 YEAR) GROUP BY country;
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What is the number of COVID-19 cases per 100,000 people?
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CREATE TABLE cases_population (county VARCHAR(100),cases INT,population INT);
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SELECT county, 100000.0*cases/population FROM cases_population;
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Identify countries with a marine research station in the Arctic Ocean.
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CREATE TABLE countries (country_name VARCHAR(50),has_arctic_station BOOLEAN); INSERT INTO countries (country_name,has_arctic_station) VALUES ('Canada',true),('Brazil',false);
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SELECT country_name FROM countries WHERE has_arctic_station = true;
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Increase the budget of all marine research projects led by the Ocean Exploration Trust by 15%
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CREATE TABLE marine_research_projects (id INT,name VARCHAR(255),location VARCHAR(255),budget DECIMAL(10,2),organization VARCHAR(255)); INSERT INTO marine_research_projects (id,name,location,budget,organization) VALUES (1,'Coral Reef Study','Indian Ocean',250000.00,'Ocean Exploration Trust'),(2,'Ocean Current Analysis','Atlantic Ocean',350000.00,'National Oceanic and Atmospheric Administration');
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UPDATE marine_research_projects SET budget = budget * 1.15 WHERE organization = 'Ocean Exploration Trust';
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What is the average cargo weight of vessels that had accidents and were registered in Panama in 2018?
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CREATE TABLE Vessels (ID INT,Name TEXT,Cargo_Weight INT,Accidents INT,Registered_Country TEXT,Year INT);CREATE VIEW Panama_Registered_Vessels AS SELECT * FROM Vessels WHERE Registered_Country = 'Panama';
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SELECT AVG(Cargo_Weight) FROM Panama_Registered_Vessels WHERE Accidents > 0 AND Year = 2018;
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Who is the farmer in 'Toronto' with the lowest yield of carrots?
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CREATE TABLE urban_farmers (id INT,name VARCHAR(50),location VARCHAR(50),crops VARCHAR(50)); CREATE TABLE crops (id INT,name VARCHAR(50),yield INT); INSERT INTO urban_farmers VALUES (1,'Ella Evans','Toronto','Carrots'); INSERT INTO crops VALUES (1,'Carrots',100);
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SELECT name FROM urban_farmers INNER JOIN crops ON urban_farmers.crops = crops.name WHERE crops.name = 'Carrots' AND crops.yield = (SELECT MIN(yield) FROM crops WHERE name = 'Carrots') AND urban_farmers.location = 'Toronto';
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Which cities had the most diverse visitor demographics in 2018?
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CREATE TABLE CityDemographics (id INT,city VARCHAR(20),year INT,diversity_score FLOAT); INSERT INTO CityDemographics (id,city,year,diversity_score) VALUES (1,'Paris',2019,0.75),(2,'London',2018,0.82),(3,'New York',2018,0.88),(4,'Tokyo',2018,0.70);
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SELECT city, diversity_score FROM CityDemographics WHERE year = 2018 ORDER BY diversity_score DESC LIMIT 1;
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What is the average calorie intake for meals served in 'sustainable_restaurants' table, grouped by cuisine type?
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CREATE TABLE sustainable_restaurants (restaurant_id INT,cuisine VARCHAR(255),avg_calories DECIMAL(5,2));
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SELECT cuisine, AVG(avg_calories) FROM sustainable_restaurants GROUP BY cuisine;
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Calculate the total budget for all programs in the 'wildlife_protection' department
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CREATE TABLE program_info (program_id INT,program_name VARCHAR(20),department VARCHAR(20)); INSERT INTO program_info (program_id,program_name,department) VALUES (1,'habitat_restoration','wildlife_protection'),(2,'community_education','public_awareness'),(3,'species_conservation','wildlife_protection'); CREATE TABLE program_budget (program_id INT,budget INT); INSERT INTO program_budget (program_id,budget) VALUES (1,5000),(2,7000),(3,8000);
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SELECT SUM(program_budget.budget) FROM program_budget INNER JOIN program_info ON program_budget.program_id = program_info.program_id WHERE program_info.department = 'wildlife_protection';
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Insert a new record for a completed project in the Projects table.
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CREATE TABLE Projects (ProjectID INT,ProjectName VARCHAR(50),StartDate DATE,EndDate DATE,EmployeeID INT,FOREIGN KEY (EmployeeID) REFERENCES Employees(EmployeeID));
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INSERT INTO Projects (ProjectID, ProjectName, StartDate, EndDate, EmployeeID) VALUES (2, 'Eco-Friendly Renovation', '2021-10-01', '2022-03-31', 3);
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What's the total amount of funds raised by NGOs located in Africa and Asia?
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CREATE TABLE ngo_funds (id INT,ngo_name VARCHAR(50),location VARCHAR(20),funds_raised DECIMAL(10,2)); INSERT INTO ngo_funds (id,ngo_name,location,funds_raised) VALUES (1,'Save the Children','Africa',50000),(2,'CARE International','Asia',75000),(3,'World Vision','Africa',60000),(4,'Plan International','Asia',80000);
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SELECT SUM(funds_raised) FROM ngo_funds WHERE location IN ('Africa', 'Asia');
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Find the average 'Safety_Rating' in the 'Workplace_Safety' table for the 'Construction' industry.
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CREATE TABLE Workplace_Safety (id INT,industry VARCHAR(20),safety_rating FLOAT); INSERT INTO Workplace_Safety (id,industry,safety_rating) VALUES (1,'Construction',4.2),(2,'Manufacturing',3.9),(3,'Construction',4.5);
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SELECT AVG(safety_rating) FROM Workplace_Safety WHERE industry = 'Construction';
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What percentage of articles published in 2021 by "The Guardian" are about "Politics"?
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CREATE TABLE articles (id INT,title TEXT,content TEXT,publication_date DATE,newspaper TEXT); CREATE TABLE categories (id INT,article_id INT,category TEXT);
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SELECT (COUNT(CASE WHEN c.category = 'Politics' THEN 1 END) * 100.0 / COUNT(*)) AS politics_percentage FROM articles a INNER JOIN categories c ON a.id = c.article_id WHERE a.publication_date BETWEEN '2021-01-01' AND '2021-12-31' AND a.newspaper = 'The Guardian';
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Insert new records into the 'ChargingStations' table for 2 new electric charging stations
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CREATE TABLE ChargingStations (station_id INT,location VARCHAR(30),PRIMARY KEY (station_id));
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INSERT INTO ChargingStations (station_id, location) VALUES (1001, 'Oakland Ave, Oakland'), (1002, 'Market St, San Francisco');
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What are the top 5 most common vulnerabilities by type across all software?
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CREATE TABLE vulnerabilities (id INT,software_id INT,type VARCHAR(255)); INSERT INTO vulnerabilities (id,software_id,type) VALUES (1,1,'Buffer Overflow'),(2,1,'SQL Injection'),(3,2,'Cross-Site Scripting'),(4,2,'Buffer Overflow'),(5,3,'SQL Injection');
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SELECT type, COUNT(*) as count FROM vulnerabilities GROUP BY type ORDER BY count DESC LIMIT 5;
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Identify the number of unique research grants received by female faculty members.
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CREATE TABLE faculty (id INT,name VARCHAR(50),gender VARCHAR(10),department VARCHAR(20)); CREATE TABLE research_grants (faculty_id INT,grant_amount DECIMAL(10,2)); INSERT INTO faculty (id,name,gender,department) VALUES (1,'Alex Brown','Male','Computer Science'),(2,'Rachel Green','Female','Biology'),(3,'Jessica White','Female','Chemistry'); INSERT INTO research_grants (faculty_id,grant_amount) VALUES (1,25000.00),(1,30000.00),(3,40000.00);
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SELECT COUNT(DISTINCT grant_amount) as num_unique_grants FROM research_grants rg JOIN faculty f ON rg.faculty_id = f.id WHERE f.gender = 'Female';
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List menu items and their categories that are not available in any order.
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CREATE TABLE inventory (menu_id INT,inventory_quantity INT); CREATE VIEW menu_categories AS SELECT menu_id,'Non-veg' AS category FROM menus WHERE menu_type = 'Non-veg' UNION SELECT menu_id,'Veg' FROM menus WHERE menu_type = 'Veg'; CREATE TABLE orders (order_id INT,menu_id INT);
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SELECT m.menu_name, c.category FROM inventory i RIGHT JOIN menus m ON i.menu_id = m.menu_id JOIN menu_categories c ON m.menu_id = c.menu_id LEFT JOIN orders o ON m.menu_id = o.menu_id WHERE i.inventory_quantity > 0 AND o.order_id IS NULL;
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What is the average population of Arctic communities?
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CREATE TABLE community (id INT PRIMARY KEY,name VARCHAR(255),location VARCHAR(255),population INT); INSERT INTO community (id,name,location,population) VALUES (1,'Inuit','Arctic',5000); INSERT INTO community (id,name,location,population) VALUES (2,'Samí','Arctic',80000); INSERT INTO community (id,name,location,population) VALUES (3,'Aleut','Alaska',2500);
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SELECT AVG(population) FROM community WHERE location = 'Arctic';
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Which water conservation initiatives were implemented before 2018?
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CREATE TABLE water_conservation_initiatives (id INT,name VARCHAR(50),year INT); INSERT INTO water_conservation_initiatives (id,name,year) VALUES (1,'Initiative A',2015); INSERT INTO water_conservation_initiatives (id,name,year) VALUES (2,'Initiative B',2017);
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SELECT w.name FROM water_conservation_initiatives w WHERE w.year < 2018;
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What is the maximum and minimum installed capacity of wind farms in the country of Spain, and what are their names?
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CREATE TABLE wind_farms (id INT,name VARCHAR(255),country VARCHAR(255),capacity FLOAT,completion_date DATE);
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SELECT name, MAX(capacity) AS max_capacity, MIN(capacity) AS min_capacity FROM wind_farms WHERE country = 'Spain';
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What is the maximum temperature (in Fahrenheit) recorded by the IoT sensors in "Field2" in the morning (before 12:00 PM) on any day in 2021?
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CREATE TABLE Field2_Temp (sensor_id INT,sensor_reading TIME,temp FLOAT); INSERT INTO Field2_Temp (sensor_id,sensor_reading,temp) VALUES (1,'06:00:00',75.2),(2,'11:00:00',80.5),(1,'09:00:00',78.9);
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SELECT MAX(temp) FROM Field2_Temp WHERE sensor_reading < '12:00:00' AND YEAR(sensor_reading) = 2021;
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Insert a new artist 'Maria Fernandes' in the 'Artists' table
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CREATE TABLE Artists (ArtistID INT PRIMARY KEY,ArtistName VARCHAR(100));
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INSERT INTO Artists (ArtistID, ArtistName) VALUES (101, 'Maria Fernandes');
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Calculate the percentage of garments in each size range, for each clothing category, sold in the United States.
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CREATE TABLE GarmentSales (SaleID INT,GarmentID INT,Size VARCHAR(255),Category VARCHAR(255),Country VARCHAR(255)); INSERT INTO GarmentSales (SaleID,GarmentID,Size,Category,Country) VALUES (1,1,'Small','Tops','USA');
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SELECT Category, Size, COUNT(*) * 100.0 / SUM(COUNT(*)) OVER (PARTITION BY Category) as Percentage FROM GarmentSales WHERE Country = 'USA' GROUP BY Category, Size;
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What was the total cost of sustainable building projects in the city of Atlanta in 2020?
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CREATE TABLE Sustainable_Projects (id INT,project_cost FLOAT,year INT,city VARCHAR(20)); INSERT INTO Sustainable_Projects (id,project_cost,year,city) VALUES (1,6000000,2020,'Atlanta');
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SELECT SUM(project_cost) FROM Sustainable_Projects WHERE year = 2020 AND city = 'Atlanta';
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Insert a new record in the trending_fashions table for style 'Jumpsuit', region 'Europe' and popularity 80
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CREATE TABLE trending_fashions (style VARCHAR(255) PRIMARY KEY,region VARCHAR(255),popularity INT); INSERT INTO trending_fashions (style,region,popularity) VALUES ('Tunic','MiddleEast',60),('Pants','Asia',90);
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INSERT INTO trending_fashions (style, region, popularity) VALUES ('Jumpsuit', 'Europe', 80);
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What is the minimum budget for each program in 2027, excluding any updates made to the budgets?
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CREATE TABLE Programs (ProgramID INT,Name TEXT,InitialBudget DECIMAL(10,2));CREATE TABLE BudgetUpdates (UpdateID INT,ProgramID INT,NewBudget DECIMAL(10,2),UpdateDate DATE);
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SELECT P.Name, MIN(P.InitialBudget) as MinBudget FROM Programs P LEFT JOIN BudgetUpdates BU ON P.ProgramID = BU.ProgramID GROUP BY P.ProgramID, P.Name;
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What is the total quantity of organic waste produced in the city of London, United Kingdom, for the year 2021?
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CREATE TABLE waste_types (type VARCHAR(20),quantity INT); INSERT INTO waste_types (type,quantity) VALUES ('organic',16000),('plastic',9000),('glass',5000);
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SELECT SUM(quantity) FROM waste_types WHERE type = 'organic' AND YEAR(date) = 2021;
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What is the percentage of soybean fields in Brazil that have a pH level above 7.5, based on IoT sensor data?
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CREATE TABLE pH_data (location VARCHAR(255),date DATE,pH FLOAT); INSERT INTO pH_data (location,date,pH) VALUES ('Brazil Soybean Field 1','2021-06-01',8.2),('Brazil Soybean Field 1','2021-06-02',8.3),('Brazil Soybean Field 2','2021-06-01',7.4);
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SELECT 100.0 * COUNT(*) / (SELECT COUNT(*) FROM pH_data WHERE location LIKE '%Brazil Soybean Field%') FROM pH_data WHERE pH > 7.5 AND location LIKE '%Brazil Soybean Field%';
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Find the total number of players who played more than 50% of the game time in the last 6 months.
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CREATE TABLE GameEvents (PlayerID INT,EventTimestamp DATETIME,EventType VARCHAR(255)); INSERT INTO GameEvents (PlayerID,EventTimestamp,EventType) VALUES (1,'2021-06-01 12:00:00','GameStart'),(2,'2021-06-01 13:00:00','GameEnd'),(3,'2021-06-01 14:00:00','GameStart');
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SELECT COUNT(DISTINCT PlayerID) as TotalPlayers FROM GameEvents WHERE EventType = 'GameStart' AND EventTimestamp BETWEEN DATEADD(month, -6, CURRENT_DATE) AND CURRENT_DATE AND (SELECT COUNT(*) FROM GameEvents as GE2 WHERE GE2.PlayerID = GameEvents.PlayerID AND GE2.EventType IN ('GameStart', 'GameEnd') AND GE2.EventTimestamp BETWEEN GameEvents.EventTimestamp AND DATEADD(month, 6, GameEvents.EventTimestamp)) > (SELECT COUNT(*) FROM GameEvents as GE3 WHERE GE3.PlayerID = GameEvents.PlayerID AND GE3.EventType = 'GameStart' AND GE3.EventTimestamp BETWEEN DATEADD(month, -6, CURRENT_DATE) AND GameEvents.EventTimestamp);
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How many citizens provided feedback for service request SR001?
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CREATE TABLE feedback (id INT,service_request_id INT,feedback TEXT);
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SELECT COUNT(*) FROM feedback WHERE service_request_id = 1;
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Which suppliers have provided more than 500kg of organic ingredients in total?
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CREATE TABLE suppliers (supplier_id INT,supplier_name VARCHAR(255)); CREATE TABLE ingredients (ingredient_id INT,ingredient_name VARCHAR(255),is_organic BOOLEAN); CREATE TABLE inventory (inventory_id INT,ingredient_id INT,supplier_id INT,quantity FLOAT); INSERT INTO suppliers (supplier_id,supplier_name) VALUES (1,'Eco Farms'),(2,'Green Earth'),(3,'Local Harvest'); INSERT INTO ingredients (ingredient_id,ingredient_name,is_organic) VALUES (1,'Tomatoes',true),(2,'Chicken',false),(3,'Spinach',true); INSERT INTO inventory (inventory_id,ingredient_id,supplier_id,quantity) VALUES (1,1,1,300),(2,2,1,500),(3,3,2,1000),(4,1,2,700),(5,3,3,400);
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SELECT supplier_name, SUM(quantity) as total_kg_organic FROM inventory i JOIN ingredients ing ON i.ingredient_id = ing.ingredient_id JOIN suppliers s ON i.supplier_id = s.supplier_id WHERE is_organic = true GROUP BY supplier_name HAVING SUM(quantity) > 500;
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What was the total waste generated by the 'Eco-friendly Production' plant in the first half of 2021?
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CREATE TABLE Plants (id INT,name VARCHAR(255)); INSERT INTO Plants (id,name) VALUES (6,'Eco-friendly Production'); CREATE TABLE Waste (plant_id INT,quantity INT,waste_date DATE); INSERT INTO Waste (plant_id,quantity,waste_date) VALUES (6,250,'2021-01-01'),(6,300,'2021-04-01');
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SELECT SUM(quantity) FROM Waste WHERE plant_id = 6 AND waste_date BETWEEN '2021-01-01' AND '2021-06-30';
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What is the average number of stories for buildings in Texas?
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CREATE TABLE buildings (id INT,name VARCHAR(50),state VARCHAR(50),num_stories INT); INSERT INTO buildings (id,name,state,num_stories) VALUES (1,'Building A','Texas',5),(2,'Building B','Texas',10),(3,'Building C','California',3);
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SELECT AVG(num_stories) FROM buildings WHERE state = 'Texas';
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What is the total R&D expenditure for the drug 'Drexo' in Asia?
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CREATE TABLE rd_expenditure_2 (drug_name TEXT,expenditure NUMERIC,region TEXT); INSERT INTO rd_expenditure_2 (drug_name,expenditure,region) VALUES ('Curely',6000000,'Japan'),('Drexo',8000000,'China');
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SELECT SUM(expenditure) FROM rd_expenditure_2 WHERE drug_name = 'Drexo' AND region = 'Asia';
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How many hectares of mangrove forests are there in Indonesia?
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CREATE TABLE mangrove_forests (country VARCHAR(20),area FLOAT); INSERT INTO mangrove_forests (country,area) VALUES ('Indonesia',12345.6),('Brazil',7890.1);
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SELECT SUM(area) FROM mangrove_forests WHERE country = 'Indonesia';
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What are the player counts and average scores for each game released before 2018?
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CREATE TABLE GameSessions (SessionID int,GameName varchar(50),PlayerCount int,ReleaseYear int,AvgScore int); INSERT INTO GameSessions (SessionID,GameName,PlayerCount,ReleaseYear,AvgScore) VALUES (1,'GameC',100,2017,80); INSERT INTO GameSessions (SessionID,GameName,PlayerCount,ReleaseYear,AvgScore) VALUES (2,'GameD',150,2018,85);
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SELECT GameName, SUM(PlayerCount) as TotalPlayers, AVG(AvgScore) as AvgScore FROM GameSessions WHERE ReleaseYear < 2018 GROUP BY GameName;
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What is the average funding received by biotech startups in the US and Canada?
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CREATE SCHEMA if not exists biotech;USE biotech;CREATE TABLE if not exists startups (name VARCHAR(255),location VARCHAR(255),funding FLOAT);INSERT INTO startups (name,location,funding) VALUES ('Startup1','USA',5000000),('Startup2','Canada',7000000),('Startup3','USA',3000000);
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SELECT AVG(funding) FROM startups WHERE location IN ('USA', 'Canada');
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Identify the number of employees in each department and the percentage of the total workforce.
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CREATE TABLE departments (id INT,department TEXT,employee_count INT); INSERT INTO departments (id,department,employee_count) VALUES (1,'mining_operations',150); INSERT INTO departments (id,department,employee_count) VALUES (2,'geology',120);
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SELECT department, employee_count, ROUND(100.0 * employee_count / (SELECT SUM(employee_count) FROM departments), 2) AS percentage FROM departments;
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What was the maximum precipitation recorded in 'Spring' per device?
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CREATE TABLE sensors (id INT,device_id VARCHAR(255),precipitation INT,reading_date DATE); INSERT INTO sensors (id,device_id,precipitation,reading_date) VALUES (1,'Dev1',15,'2021-03-01'); INSERT INTO sensors (id,device_id,precipitation,reading_date) VALUES (2,'Dev2',20,'2021-04-15');
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SELECT device_id, MAX(precipitation) FROM sensors WHERE reading_date BETWEEN (SELECT MIN(reading_date) FROM sensors WHERE EXTRACT(MONTH FROM reading_date) IN (3,4,5)) AND (SELECT MAX(reading_date) FROM sensors WHERE EXTRACT(MONTH FROM reading_date) IN (3,4,5)) GROUP BY device_id
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What percentage of cosmetic products are not safety certified?
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CREATE TABLE products (product_id INT,product_name TEXT,is_safety_certified BOOLEAN); INSERT INTO products (product_id,product_name,is_safety_certified) VALUES (1,'Eyeshadow',true),(2,'Blush',false),(3,'Highlighter',true);
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SELECT (COUNT(*) - SUM(is_safety_certified)) * 100.0 / COUNT(*) as percentage FROM products;
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Which athlete has the lowest wellbeing score on each team?
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CREATE TABLE athlete_wellbeing (athlete_id INT,team_id INT,athlete_name VARCHAR(255),nationality VARCHAR(255),score INT); INSERT INTO athlete_wellbeing (athlete_id,team_id,athlete_name,nationality,score) VALUES (1,1,'AthleteA','USA',8),(2,1,'AthleteB','Canada',9),(3,2,'AthleteC','Brazil',7),(4,2,'AthleteD','India',6),(5,2,'AthleteE','India',8);
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SELECT team_id, MIN(score) as lowest_score FROM athlete_wellbeing GROUP BY team_id;
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Find the average price of products sourced from each country, excluding products sourced from China.
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CREATE TABLE products (product_id INT,product_name VARCHAR(50),source_country VARCHAR(50),price DECIMAL(5,2)); INSERT INTO products (product_id,product_name,source_country,price) VALUES (1,'T-Shirt','USA',20.99),(2,'Pants','China',15.99),(3,'Jacket','India',35.99),(4,'Socks','Bangladesh',7.99);
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SELECT source_country, AVG(price) FROM products WHERE source_country <> 'China' GROUP BY source_country;
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What is the average speed of vessels for each country?
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CREATE TABLE country_vessels (id INT,country VARCHAR(50),vessel_id INT,name VARCHAR(50),speed DECIMAL(5,2)); INSERT INTO country_vessels VALUES (1,'Japan',1,'Vessel1',25.6),(2,'Japan',2,'Vessel2',27.3),(3,'China',3,'Vessel3',24.5);
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SELECT country, AVG(speed) FROM country_vessels GROUP BY country;
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Display the number of players who achieved a win rate of over 70% in 'CS:GO'.
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CREATE TABLE CSGOPlayers (PlayerID INT,Player VARCHAR(50),Wins INT,Losses INT); INSERT INTO CSGOPlayers (PlayerID,Player,Wins,Losses) VALUES (1,'Han',70,30); INSERT INTO CSGOPlayers (PlayerID,Player,Wins,Losses) VALUES (2,'Sophia',85,20); INSERT INTO CSGOPlayers (PlayerID,Player,Wins,Losses) VALUES (3,'Minho',65,35); INSERT INTO CSGOPlayers (PlayerID,Player,Wins,Losses) VALUES (4,'Lena',90,10);
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SELECT COUNT(*) FROM CSGOPlayers WHERE (Wins / (Wins + Losses)) > 0.7 AND Game = 'CS:GO';
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Delete a training program record from the 'training_programs' table
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CREATE TABLE training_programs (id INT PRIMARY KEY,program_name VARCHAR(50),start_date DATE,end_date DATE,location VARCHAR(50));
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DELETE FROM training_programs WHERE id = 1001;
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Which communities are engaged in preserving the heritage sites in Europe and what are those sites?
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CREATE TABLE Communities (id INT,name TEXT); INSERT INTO Communities (id,name) VALUES (1,'Romans'); CREATE TABLE HeritageCommunities (id INT,community_id INT,heritage_site TEXT); INSERT INTO HeritageCommunities (id,community_id,heritage_site) VALUES (1,1,'Colosseum');
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SELECT C.name, HC.heritage_site FROM Communities C INNER JOIN HeritageCommunities HC ON C.id = HC.community_id WHERE HC.heritage_site = 'Colosseum';
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Find the top 2 dispensaries with the highest total revenue in Oregon in Q2 2022.
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CREATE TABLE dispensaries (id INT,name VARCHAR(50),state VARCHAR(20)); CREATE TABLE sales (id INT,dispensary_id INT,revenue DECIMAL(10,2),date DATE); INSERT INTO dispensaries (id,name,state) VALUES (1,'Green Valley','Oregon'),(2,'Emerald City','Oregon'); INSERT INTO sales (id,dispensary_id,revenue,date) VALUES (1,1,8000.00,'2022-04-01'),(2,2,9000.00,'2022-04-02');
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SELECT dispensary_id, SUM(revenue) as total_revenue FROM sales WHERE date BETWEEN '2022-04-01' AND '2022-06-30' GROUP BY dispensary_id ORDER BY total_revenue DESC FETCH NEXT 2 ROWS ONLY;
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Who are the top 5 students with the most accommodations provided?
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CREATE TABLE Students (Id INT,Name VARCHAR(100),DisabilityType VARCHAR(50)); CREATE TABLE Accommodations (Id INT,StudentId INT,AccommodationType VARCHAR(50),DateProvided DATETIME); INSERT INTO Students (Id,Name,DisabilityType) VALUES (1,'Jane Doe','Mobility Impairment'),(2,'John Doe','Visual Impairment'),(3,'Sarah Smith','Learning Disability'),(4,'Michael Lee','Hearing Impairment'),(5,'David Kim','Psychiatric Disability'); INSERT INTO Accommodations (Id,StudentId,AccommodationType,DateProvided) VALUES (1,1,'Wheelchair Ramp','2021-01-01'),(2,1,'Note Taker','2021-01-02'),(3,2,'Screen Reader','2021-01-03'),(4,2,'Braille Materials','2021-01-04'),(5,3,'Extra Time','2021-01-05'),(6,3,'Quiet Space','2021-01-06'),(7,4,'Sign Language Interpreter','2021-01-07'),(8,4,'Captioned Videos','2021-01-08'),(9,5,'Therapy Sessions','2021-01-09'),(10,5,'Medication Reminders','2021-01-10');
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SELECT Students.Name, COUNT(*) AS NumberOfAccommodations FROM Students JOIN Accommodations ON Students.Id = Accommodations.StudentId GROUP BY Students.Id ORDER BY NumberOfAccommodations DESC LIMIT 5;
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What is the total number of Green buildings in each country?
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CREATE TABLE green_buildings_2 (building_id INT,building_name TEXT,country TEXT); INSERT INTO green_buildings_2 (building_id,building_name,country) VALUES (1,'Green Building 1','USA'),(2,'Green Building 2','USA'),(3,'Green Building 3','Canada');
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SELECT country, COUNT(*) FROM green_buildings_2 GROUP BY country;
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Find the average number of biosensor technology patents per year between 2018 and 2021.
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CREATE SCHEMA if not exists biotech;CREATE TABLE if not exists biotech.patents (id INT,title VARCHAR(100),country VARCHAR(50),research_area VARCHAR(50),patent_year INT); INSERT INTO biotech.patents (id,title,country,research_area,patent_year) VALUES (1,'Patent6','USA','Biosensor Technology',2018),(2,'Patent7','Canada','Biosensor Technology',2020),(3,'Patent8','USA','Biosensor Technology',2021),(4,'Patent9','UK','Biosensor Technology',2019);
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SELECT AVG(patent_year) FROM biotech.patents WHERE research_area = 'Biosensor Technology' AND patent_year BETWEEN 2018 AND 2021 GROUP BY research_area, patent_year;
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Insert a new record into the 'patients' table with the following details: first name 'John', last name 'Doe', age 30, gender 'Male', and ethnicity 'Caucasian'.
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CREATE TABLE patients (patient_id INT PRIMARY KEY AUTO_INCREMENT,first_name VARCHAR(50),last_name VARCHAR(50),age INT,gender VARCHAR(10),ethnicity VARCHAR(50));
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INSERT INTO patients (first_name, last_name, age, gender, ethnicity) VALUES ('John', 'Doe', 30, 'Male', 'Caucasian');
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How many heritage sites are in Africa, with their names and the year they were added to the list, sorted by the year added?
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CREATE TABLE HeritageSites (SiteName VARCHAR(255),Country VARCHAR(255),YearAdded INT); INSERT INTO HeritageSites (SiteName,Country,YearAdded) VALUES ('Medina of Tunis','Tunisia',1979),('City of Valletta','Malta',1980),('Historic Centre of Rome','Italy',1980),('Sundarbans National Park','India',1987),('Aapravasi Ghat','Mauritius',2006),('Robben Island','South Africa',1999);
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SELECT SiteName, Country, YearAdded FROM HeritageSites WHERE Country = 'Africa' ORDER BY YearAdded ASC;
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What is the percentage of community health workers who identify as Hispanic or Latino by state?
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CREATE TABLE States (state_id INT,state_name TEXT); CREATE TABLE CommunityHealthWorkers (worker_id INT,worker_ethnicity TEXT,state_id INT);
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SELECT COUNT(*) FILTER (WHERE worker_ethnicity = 'Hispanic or Latino') * 100.0 / COUNT(*) as pct_hispanic_workers, s.state_name FROM CommunityHealthWorkers chw JOIN States s ON chw.state_id = s.state_id GROUP BY s.state_id;
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What is the total number of streams for each artist in descending order?
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CREATE TABLE artist_streams (stream_id INT,artist_id INT,streams_amount INT); CREATE TABLE artist (artist_id INT,artist_name VARCHAR(255));
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SELECT artist_name, SUM(streams_amount) FROM artist_streams JOIN artist ON artist_streams.artist_id = artist.artist_id GROUP BY artist_name ORDER BY SUM(streams_amount) DESC;
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Delete co-living properties in cities without inclusive housing policies.
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CREATE TABLE CoLivingProperties(id INT,size FLOAT,city VARCHAR(20));INSERT INTO CoLivingProperties(id,size,city) VALUES (1,800,'Portland'),(2,900,'Seattle'),(3,1000,'SanFrancisco'),(4,1100,'Austin'); CREATE TABLE Cities(id INT,city VARCHAR(20),inclusive VARCHAR(20));INSERT INTO Cities(id,city,inclusive) VALUES (1,'Portland','Yes'),(2,'Seattle','Yes'),(3,'SanFrancisco','No'),(4,'Austin','Yes');
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DELETE FROM CoLivingProperties WHERE city NOT IN (SELECT city FROM Cities WHERE inclusive = 'Yes');
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What is the total number of marine protected areas in the Pacific region and their total area?
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CREATE TABLE marine_protected_areas (id INT,name VARCHAR(255),region VARCHAR(255)); INSERT INTO marine_protected_areas (id,name,region) VALUES (1,'Galapagos Marine Reserve','Pacific'),(2,'Great Barrier Reef','Pacific');
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SELECT SUM(area) as total_area, region FROM marine_protected_areas JOIN areas_of_marine_protected_areas ON marine_protected_areas.id = areas_of_marine_protected_areas.marine_protected_area_id WHERE region = 'Pacific' GROUP BY region;
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How many circular supply chain initiatives have been implemented in the United States, according to CircularSupplyChain table?
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CREATE TABLE CircularSupplyChain (initiative_id INT,initiative_name VARCHAR(100),country VARCHAR(50),start_date DATE); INSERT INTO CircularSupplyChain (initiative_id,initiative_name,country,start_date) VALUES (1,'Project Reclaim','USA','2019-04-01'),(2,'Closed Loop Partnership','Canada','2020-06-15'),(3,'GreenBlue Initiative','USA','2018-09-20');
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SELECT COUNT(*) FROM CircularSupplyChain WHERE country = 'USA';
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What was the total quantity sold for hybrid strains in Michigan in 2021?
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CREATE TABLE sales (id INT,state VARCHAR(50),year INT,strain_type VARCHAR(50),quantity SINT); INSERT INTO sales (id,state,year,strain_type,quantity) VALUES (1,'Michigan',2021,'Hybrid',500),(2,'Michigan',2021,'Sativa',600),(3,'California',2021,'Indica',400);
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SELECT SUM(quantity) FROM sales WHERE state = 'Michigan' AND year = 2021 AND strain_type = 'Hybrid';
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List the top 5 most read news articles in descending order by views.
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CREATE TABLE articles (id INT,title VARCHAR(100),content TEXT,views INT);
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SELECT title FROM (SELECT title, ROW_NUMBER() OVER (ORDER BY views DESC) as rn FROM articles) tmp WHERE rn <= 5;
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What is the average water temperature for fish stock management in each region?
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CREATE TABLE regional_temps (id INT,region TEXT,farm_id INT,water_temperature DECIMAL(5,2)); INSERT INTO regional_temps (id,region,farm_id,water_temperature) VALUES (1,'Atlantic',1,11.5),(2,'Atlantic',2,12.0),(3,'Pacific',3,16.0),(4,'Pacific',4,17.5),(5,'Atlantic',5,10.0);
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SELECT region, AVG(water_temperature) as avg_temp FROM regional_temps GROUP BY region;
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What is the total revenue for concerts held in 'Los Angeles'?
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CREATE TABLE concerts (id INT,artist_id INT,city VARCHAR(50),revenue FLOAT); INSERT INTO concerts (id,artist_id,city,revenue) VALUES (1,1,'Los Angeles',500000),(2,1,'New York',700000),(3,2,'Seoul',800000),(4,2,'Tokyo',900000),(5,1,'Los Angeles',600000);
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SELECT SUM(revenue) as total_revenue FROM concerts WHERE city = 'Los Angeles';
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How many water conservation initiatives were implemented in the Midwest region in Q3 of 2019?
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CREATE TABLE conservation_initiatives (id INT,name TEXT,region TEXT,timestamp DATETIME); INSERT INTO conservation_initiatives (id,name,region,timestamp) VALUES (1,'Initiative A','Midwest','2019-07-01 10:00:00'),(2,'Initiative B','Midwest','2019-04-01 15:00:00'),(3,'Initiative C','Midwest','2019-07-15 09:30:00');
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SELECT COUNT(*) FROM conservation_initiatives WHERE region = 'Midwest' AND QUARTER(timestamp) = 3 AND YEAR(timestamp) = 2019;
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What is the maximum biomass of fish in aquaculture farms in India in 2019?
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CREATE TABLE Fish_Farms (id INT,country VARCHAR(255),year INT,biomass INT); INSERT INTO Fish_Farms (id,country,year,biomass) VALUES (1,'India',2018,300),(2,'India',2019,450),(3,'China',2018,500),(4,'India',2020,550);
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SELECT MAX(Fish_Farms.biomass) FROM Fish_Farms WHERE Fish_Farms.country = 'India' AND Fish_Farms.year = 2019;
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Show the number of wells in the South Pacific that were drilled each year from 2010 to 2020.
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CREATE TABLE wells_south_pacific (id INT,location VARCHAR(20),drill_date DATE);
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SELECT drill_date, COUNT(*) FROM wells_south_pacific WHERE location LIKE 'South Pacific%' AND drill_date BETWEEN '2010-01-01' AND '2020-12-31' GROUP BY drill_date;
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Add a traditional art from Africa to the 'traditional_arts' table
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CREATE TABLE traditional_arts (id INT PRIMARY KEY,name VARCHAR(255),type VARCHAR(255),region VARCHAR(255));
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INSERT INTO traditional_arts (id, name, type, region) VALUES (1, 'Adire Textiles', 'Textile', 'West Africa');
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Delete all warehouse records with a stock level below 10 for items in the 'Electronics' category.
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CREATE TABLE Warehouses (WarehouseID INT,Item VARCHAR(255),Category VARCHAR(255),StockLevel INT); INSERT INTO Warehouses (WarehouseID,Item,Category,StockLevel) VALUES (1,'Laptop','Electronics',25),(2,'Monitor','Electronics',12),(3,'Keyboard','Electronics',18),(4,'Table','Furniture',30),(5,'Chair','Furniture',40);
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DELETE FROM Warehouses WHERE StockLevel < 10 AND Category = 'Electronics';
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What is the average well-being score for athletes in each team, excluding the lowest and highest scores?
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CREATE TABLE teams (team_id INT,team_name VARCHAR(50));CREATE TABLE athletes (athlete_id INT,athlete_name VARCHAR(50),team_id INT,well_being_score INT); INSERT INTO teams (team_id,team_name) VALUES (1,'Atlanta Hawks'),(2,'Boston Celtics'); INSERT INTO athletes (athlete_id,athlete_name,team_id,well_being_score) VALUES (1,'Player1',1,5),(2,'Player2',1,8),(3,'Player3',2,7),(4,'Player4',2,10),(5,'Player5',2,9);
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SELECT t.team_name, AVG(a.well_being_score) FROM teams t JOIN athletes a ON t.team_id = a.team_id WHERE a.well_being_score NOT IN (SELECT MIN(well_being_score) FROM athletes) AND a.well_being_score NOT IN (SELECT MAX(well_being_score) FROM athletes) GROUP BY t.team_id;
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List the unique climate adaptation strategies used in each region.
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CREATE TABLE region (name VARCHAR(255),PRIMARY KEY (name)); INSERT INTO region (name) VALUES ('Asia'),('Europe'),('North America'),('South America'),('Africa'),('Oceania'); CREATE TABLE climate_adaptation_strategies (strategy_name VARCHAR(255),location VARCHAR(255)); INSERT INTO climate_adaptation_strategies (strategy_name,location) VALUES ('Strategy 1','Asia'),('Strategy 2','Europe'),('Strategy 3','North America'),('Strategy 1','South America'),('Strategy 2','Africa'),('Strategy 3','Oceania');
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SELECT r.name, strategy_name FROM region r JOIN climate_adaptation_strategies s ON r.name = s.location;
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What is the total quantity of organic ingredients used in menu items?
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CREATE TABLE Dishes (DishID INT,Name VARCHAR(50),Quantity INT); CREATE TABLE Ingredients (IngredientID INT,DishID INT,Quantity INT,Organic BOOLEAN); INSERT INTO Dishes (DishID,Name,Quantity) VALUES (1,'Quinoa Salad',200),(2,'Pizza Margherita',300); INSERT INTO Ingredients (IngredientID,DishID,Quantity,Organic) VALUES (1,1,200,TRUE),(2,1,0,FALSE),(3,2,300,TRUE);
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SELECT SUM(i.Quantity) FROM Dishes d JOIN Ingredients i ON d.DishID = i.DishID WHERE i.Organic = TRUE;
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What are the total home runs hit by baseball players in the current year?
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CREATE TABLE home_runs (player VARCHAR(50),year INT,home_runs INT); INSERT INTO home_runs (player,year,home_runs) VALUES ('Johnson',2021,40),('Johnson',2022,35),('Brown',2021,50),('Brown',2022,55);
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SELECT player, SUM(home_runs) AS total_home_runs FROM home_runs WHERE year = YEAR(GETDATE()) GROUP BY player
|
How many sustainable fabric types does each supplier offer?
|
CREATE TABLE suppliers (id INT,name TEXT); CREATE TABLE supplier_fabrics (id INT,supplier INT,fabric TEXT); INSERT INTO suppliers (id,name) VALUES (1,'GreenFabrics'),(2,'EcoWeave'),(3,'SustainaTex'); INSERT INTO supplier_fabrics (id,supplier,fabric) VALUES (1,1,'Organic Cotton'),(2,1,'Recycled Polyester'),(3,2,'Hemp'),(4,2,'Tencel'),(5,3,'Lyocell'),(6,3,'Bamboo');
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SELECT supplier, COUNT(DISTINCT fabric) as unique_fabrics FROM supplier_fabrics GROUP BY supplier;
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Which artist has the most works in the modern art category?
|
CREATE TABLE artists (artist_id INT PRIMARY KEY,artist_name TEXT,style TEXT);CREATE TABLE works (work_id INT PRIMARY KEY,work_title TEXT,artist_id INT,category TEXT,FOREIGN KEY (artist_id) REFERENCES artists(artist_id));INSERT INTO artists (artist_id,artist_name,style) VALUES (1,'Pablo Picasso','Cubism'); INSERT INTO works (work_id,work_title,artist_id,category) VALUES (1,'Guernica',1,'Modern Art');
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SELECT a.artist_name FROM artists a JOIN works w ON a.artist_id = w.artist_id WHERE w.category = 'Modern Art' GROUP BY a.artist_name ORDER BY COUNT(w.work_id) DESC LIMIT 1;
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Which community education programs were held in the 'community_education' table, and what was the total number of attendees for each program?
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CREATE TABLE community_education (program_name VARCHAR(255),location VARCHAR(255),date DATE,num_attendees INT); INSERT INTO community_education (program_name,location,date,num_attendees) VALUES ('Wildlife Awareness','New York','2020-01-01',50),('Nature Walk','California','2019-05-15',25),('Wildlife Awareness','Florida','2020-03-10',75);
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SELECT program_name, SUM(num_attendees) as total_attendees FROM community_education GROUP BY program_name;
|
What is the average speed of spacecraft in the space_exploration table?
|
CREATE TABLE space_exploration (id INT,name VARCHAR(20),launch_date DATE,max_speed FLOAT); INSERT INTO space_exploration (id,name,launch_date,max_speed) VALUES (1,'Voyager 1','1977-09-05',61000),(2,'New Horizons','2006-01-19',58000),(3,'Parker Solar Probe','2018-08-12',724200);
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SELECT AVG(max_speed) FROM space_exploration;
|
What is the average rating for each menu category by location?
|
CREATE TABLE menu_location_ratings (menu_category VARCHAR(50),location_name VARCHAR(50),rating NUMERIC(3,2)); INSERT INTO menu_location_ratings (menu_category,location_name,rating) VALUES ('Appetizers','San Francisco',4.5),('Entrees','San Francisco',4.0),('Desserts','San Francisco',3.5),('Appetizers','New York',3.0),('Entrees','New York',4.0),('Desserts','New York',4.5);
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SELECT menu_category, location_name, AVG(rating) AS avg_rating FROM menu_location_ratings GROUP BY menu_category, location_name;
|
What is the average mass of spacecraft manufactured by each company?
|
CREATE TABLE Spacecraft (SpacecraftID INT,Manufacturer VARCHAR(50),Model VARCHAR(50),Mass FLOAT);
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SELECT Manufacturer, AVG(Mass) FROM Spacecraft GROUP BY Manufacturer;
|
What is the total revenue for each supplier, by day?
|
CREATE TABLE purchases (purchase_date DATE,supplier VARCHAR(255),revenue DECIMAL(10,2));
|
SELECT supplier, DATE_TRUNC('day', purchase_date) AS purchase_day, SUM(revenue) AS total_revenue FROM purchases GROUP BY supplier, purchase_day;
|
What is the average veteran unemployment rate by state from 2015 to 2019?
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CREATE TABLE veteran_unemployment (state TEXT,year INT,rate DECIMAL); INSERT INTO veteran_unemployment (state,year,rate) VALUES ('California',2015,4.1),('California',2016,3.9),('California',2017,3.7),('California',2018,3.5),('California',2019,3.4),('Texas',2015,3.5),('Texas',2016,3.3),('Texas',2017,3.2),('Texas',2018,3.1),('Texas',2019,3.0);
|
SELECT state, AVG(rate) FROM veteran_unemployment WHERE year BETWEEN 2015 AND 2019 GROUP BY state;
|
What is the total fare collected for a specific train line in Berlin?
|
CREATE TABLE train_lines (line_id INT,city VARCHAR(50)); INSERT INTO train_lines (line_id,city) VALUES (1,'Berlin'),(2,'Berlin'); CREATE TABLE fares_collected (line_id INT,fare DECIMAL(5,2)); INSERT INTO fares_collected (line_id,fare) VALUES (1,500.00),(1,750.00),(2,300.00),(2,400.00);
|
SELECT SUM(fare) FROM fares_collected INNER JOIN train_lines ON fares_collected.line_id = train_lines.line_id WHERE city = 'Berlin' AND train_lines.line_id = 1;
|
List all marine species and their status under maritime law.
|
CREATE TABLE MarineSpecies (id INT,species TEXT,status TEXT);INSERT INTO MarineSpecies (id,species,status) VALUES (1,'Blue Whale','Endangered'); INSERT INTO MarineSpecies (id,species,status) VALUES (2,'Dolphin','Protected');
|
SELECT species, status FROM MarineSpecies;
|
What is the total weight of freight shipped from each country?
|
CREATE TABLE Carrier (id INT,name VARCHAR(30),country VARCHAR(20)); INSERT INTO Carrier (id,name,country) VALUES (1,'FedEx','USA'),(2,'DHL','Germany'),(3,'UPS','Canada'); CREATE TABLE Freight (id INT,route_id INT,shipped_weight INT); INSERT INTO Freight (id,route_id,shipped_weight) VALUES (1,1,250),(2,2,350),(3,3,450); CREATE TABLE Route (id INT,origin VARCHAR(20),destination VARCHAR(20)); INSERT INTO Route (id,origin,destination) VALUES (1,'New York','Los Angeles'),(2,'Berlin','Paris'),(3,'Toronto','Vancouver');
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SELECT c.country, SUM(f.shipped_weight) FROM Carrier c JOIN Route r ON c.id = r.id JOIN Freight f ON r.id = f.route_id GROUP BY c.country;
|
Find the number of cases won by attorneys in the city of Seattle.
|
CREATE TABLE attorneys (id INT,name TEXT,city TEXT); INSERT INTO attorneys (id,name,city) VALUES (1,'Harry Stone','Seattle'); CREATE TABLE cases (id INT,attorney_id INT,result TEXT); INSERT INTO cases (id,attorney_id,result) VALUES (1,1,'won');
|
SELECT COUNT(*) FROM cases INNER JOIN attorneys ON cases.attorney_id = attorneys.id WHERE attorneys.city = 'Seattle' AND cases.result = 'won';
|
What was the average number of hours spent by volunteers from a particular city in 2021?
|
CREATE TABLE volunteer_hours (volunteer_id INT,volunteer_city TEXT,hours_spent INT,hours_date DATE); CREATE TABLE cities (city_id INT,city_name TEXT); INSERT INTO cities VALUES (1,'New York'); INSERT INTO cities VALUES (2,'Los Angeles');
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SELECT volunteer_city, AVG(hours_spent) as avg_hours_spent FROM volunteer_hours JOIN cities ON volunteer_hours.volunteer_city = cities.city_name WHERE YEAR(hours_date) = 2021 GROUP BY volunteer_city;
|
Delete all records from 'FarmersMarket' view
|
CREATE VIEW FarmersMarket AS SELECT * FROM Products WHERE is_organic = TRUE; INSERT INTO Products (id,name,is_organic) VALUES (1,'Product1',TRUE),(2,'Product2',FALSE),(3,'Product3',TRUE);
|
DELETE FROM FarmersMarket;
|
How many sustainable garments were sold in Q2 2021?
|
CREATE TABLE sales (id INT,garment_id INT,date DATE); INSERT INTO sales (id,garment_id,date) VALUES
|
SELECT COUNT(*) FROM sales INNER JOIN garments ON sales.garment_id = garments.id WHERE garments.sustainable = 'true' AND date BETWEEN '2021-04-01' AND '2021-06-30';
|
How many species are there in the 'Marine Biology' journal?
|
CREATE TABLE marine_biology_journal (id INT,species TEXT); INSERT INTO marine_biology_journal (id,species) VALUES (1,'Corals'),(2,'Fish'),(3,'Mammals'),(4,'Plankton'),(5,'Turtles');
|
SELECT COUNT(*) FROM marine_biology_journal;
|
What is the average age of engineers in the Mining department?
|
CREATE TABLE Employees (EmployeeID INT,Department VARCHAR(20),Position VARCHAR(20),Age INT); INSERT INTO Employees (EmployeeID,Department,Position,Age) VALUES (1,'Mining','Engineer',35),(2,'Mining','Engineer',40),(3,'HR','Engineer',32); CREATE TABLE Department (Department VARCHAR(20),DepartmentHead VARCHAR(20)); INSERT INTO Department (Department,DepartmentHead) VALUES ('Mining','John'),('HR','Jane');
|
SELECT AVG(Age) FROM Employees WHERE Department = 'Mining' AND Position = 'Engineer';
|
What are the top 3 threat actors by the number of attacks in the last 6 months?
|
CREATE TABLE threat_actors (threat_actor_id INT,threat_actor_name VARCHAR(255),attack_count INT); INSERT INTO threat_actors (threat_actor_id,threat_actor_name,attack_count) VALUES (1,'APT28',12),(2,'Lazarus Group',15),(3,'Cozy Bear',9),(4,'Fancy Bear',18),(5,'WannaCry',7);
|
SELECT threat_actor_name, attack_count FROM threat_actors ORDER BY attack_count DESC LIMIT 3;
|
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