end lab

AirlaneDatabase.sql

@@ -0,0 +1,109 @@
+CREATE DATABASE airline_database;
+
+USE airline_database;
+
+CREATE TABLE customers (
+id INT AUTO_INCREMENT PRIMARY KEY,
+name VARCHAR(100),
+status VARCHAR(50),
+total_mileage INT
+);
+
+CREATE TABLE aircrafts (
+id INT AUTO_INCREMENT PRIMARY KEY,
+name VARCHAR(100),
+total_seats INT
+);
+
+CREATE TABLE flights (
+flight_number VARCHAR(10) PRIMARY KEY,
+aircraft_id INT,
+mileage INT,
+FOREIGN KEY (aircraft_id) REFERENCES aircrafts(id)
+);
+
+CREATE TABLE bookings (
+id INT AUTO_INCREMENT PRIMARY KEY,
+customer_id INT,
+flight_number VARCHAR(10),
+FOREIGN KEY (customer_id) REFERENCES customers(id),
+FOREIGN KEY (flight_number) REFERENCES flights(flight_number)
+);
+
+INSERT INTO aircrafts (name, total_seats) VALUES
+('Boeing 747', 400),
+('Airbus A330', 236),
+('Boeing 777', 264);
+
+INSERT INTO flights VALUES
+('DL143', 1, 135),
+('DL122', 2, 4370),
+('DL53', 3, 2078),
+('DL222', 3, 1765),
+('DL37', 1, 531);
+
+INSERT INTO customers (name, status, total_mileage) VALUES
+('Agustine Riviera', 'Silver', 115235),
+('Alaina Sepulvida', 'None', 6008),
+('Tom Jones', 'Gold', 205767),
+('Sam Rio', 'None', 2653),
+('Jessica James', 'Silver', 127656),
+('Ana Janco', 'Silver', 136773),
+('Jennifer Cortez', 'Gold', 300582),
+('Christian Janco', 'Silver', 14642);
+
+INSERT INTO bookings (customer_id, flight_number) VALUES
+(1, 'DL143'),
+(1, 'DL122'),
+(2, 'DL122'),
+(3, 'DL122'),
+(3, 'DL53'),
+(3, 'DL222'),
+(4, 'DL143'),
+(4, 'DL37'),
+(5, 'DL143'),
+(5, 'DL122'),
+(6, 'DL222'),
+(7, 'DL222'),
+(8, 'DL222');
+
+SELECT COUNT(DISTINCT flt.flight_number)
+FROM flights flt;
+
+SELECT AVG(flt.mileage)
+FROM flights flt;
+
+SELECT AVG(air.total_seats)
+FROM aircrafts air;
+
+SELECT cus.status, AVG(cus.total_mileage)
+FROM customers cus
+GROUP BY cus.status;
+
+SELECT cus.status, MAX(cus.total_mileage)
+FROM customers cus
+GROUP BY cus.status;
+
+SELECT COUNT(*)
+FROM aircrafts air
+WHERE air.name LIKE '%Boeing%';
+
+SELECT *
+FROM flights flt
+WHERE flt.mileage BETWEEN 300 AND 2000;
+
+SELECT cus.status, AVG(flt.mileage)
+FROM bookings bok
+JOIN customers cus ON bok.customer_id = cus.id
+JOIN flights flt ON bok.flight_number = flt.flight_number
+GROUP BY cus.status;
+
+SELECT air.name, COUNT(*) AS total_bookings
+FROM bookings bok
+JOIN customers cus ON bok.customer_id = cus.id
+JOIN flights flt ON bok.flight_number = flt.flight_number
+JOIN aircrafts air ON flt.aircraft_id = air.id
+WHERE cus.status = 'Gold'
+GROUP BY air.name
+ORDER BY total_bookings DESC
+LIMIT 1;

BlogDatabase.sql

@@ -0,0 +1,31 @@
+CREATE DATABASE blog_database;
+
+USE blog_database;
+
+CREATE TABLE authors (
+id INT AUTO_INCREMENT PRIMARY KEY,
+name VARCHAR(100) NOT NULL
+);
+
+CREATE TABLE posts (
+id INT AUTO_INCREMENT PRIMARY KEY,
+title VARCHAR(200),
+word_count INT,
+views INT,
+author_id INT,
+FOREIGN KEY (author_id) REFERENCES authors(id)
+);
+
+INSERT INTO authors (name) VALUES
+('Maria Charlotte'),
+('Juan Perez'),
+('Gemma Alcocer');
+
+INSERT INTO posts (title, word_count, views, author_id) VALUES
+('Best Paint Colors', 814, 14, 1),
+('Small Space Decorating Tips', 1146, 221, 2),
+('Hot Accessories', 986, 105, 1),
+('Mixing Textures', 765, 22, 1),
+('Kitchen Refresh', 1242, 307, 2),
+('Homemade Art Hacks', 1002, 193, 1),
+('Refinishing Wood Floors', 1571, 7542, 3);