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Gans_database.sql
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Gans_database.sql
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CREATE DATABASE gans;
USE gans;
CREATE TABLE IF NOT EXISTS cities (
city_id INT AUTO_INCREMENT,
city VARCHAR(200),
country VARCHAR(200),
PRIMARY KEY (city_id)
);
CREATE TABLE IF NOT EXISTS populations (
city_id INT,
population INT,
PRIMARY KEY (city_id),
FOREIGN KEY (city_id)
REFERENCES cities (city_id)
);
CREATE TABLE IF NOT EXISTS weathers (
id INT AUTO_INCREMENT,
city_id INT,
forecast_time DATETIME,
weather_outlook VARCHAR(200),
temperature DECIMAL(4 , 2 ),
feels_like_temperature DECIMAL(4 , 2 ),
wind_speed DECIMAL(3 , 2 ),
risk_of_rain DECIMAL(3 , 2 ),
PRIMARY KEY (id),
FOREIGN KEY (city_id)
REFERENCES cities (city_id)
);
CREATE TABLE IF NOT EXISTS airports (
arrival_airport_icao VARCHAR(5),
airport_name VARCHAR(200),
PRIMARY KEY (arrival_airport_icao)
);
CREATE TABLE IF NOT EXISTS cities_airports (
city_id INT,
arrival_airport_icao VARCHAR(5),
PRIMARY KEY (city_id , arrival_airport_icao),
FOREIGN KEY (city_id)
REFERENCES cities (city_id),
FOREIGN KEY (arrival_airport_icao)
REFERENCES airports (arrival_airport_icao)
);
CREATE TABLE IF NOT EXISTS flights (
flight_id INT NOT NULL AUTO_INCREMENT,
flight_number VARCHAR(25),
departure_airport_icao VARCHAR(5),
arrival_airport_icao VARCHAR(5),
arrival_time DATETIME,
PRIMARY KEY (flight_id),
FOREIGN KEY (arrival_airport_icao)
REFERENCES airports (arrival_airport_icao)
);