Finish lab

LabSQL/LabSQL.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="GENERAL_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

LabSQL/airline.sql

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+CREATE DATABASE airline;
+
+USE airline;
+
+CREATE TABLE customers (
+    customer_name VARCHAR(255) PRIMARY KEY,
+    customer_status VARCHAR(255),
+    total_customer_mileage INT
+);
+
+CREATE TABLE aircrafts (
+    aircraft VARCHAR(255) PRIMARY KEY,
+    total_aircraft_seats INT
+);
+
+CREATE TABLE flights (
+    flight_number VARCHAR(255) PRIMARY KEY,
+    aircraft VARCHAR(255),
+    flight_mileage INT,
+    FOREIGN KEY (aircraft) REFERENCES aircrafts(aircraft)
+);
+
+CREATE TABLE bookings (
+    customer_name VARCHAR(255),
+    flight_number VARCHAR(255),
+    PRIMARY KEY (customer_name, flight_number),
+    FOREIGN KEY (customer_name) REFERENCES customers(customer_name),
+    FOREIGN KEY (flight_number) REFERENCES flights(flight_number)
+);
+
+INSERT INTO customers (customer_name, customer_status, total_customer_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 aircrafts (aircraft, total_aircraft_seats)
+    VALUES
+        ('Boeing 747', 400),
+        ('Airbus A330', 236),
+        ('Boeing 777', 264);
+
+
+INSERT INTO flights (flight_number, aircraft, flight_mileage)
+    VALUES
+        ('DL143', 'Boeing 747', 135),
+        ('DL122', 'Airbus A330', 4370),
+        ('DL53', 'Boeing 777', 2078),
+        ('DL222', 'Boeing 777', 1765),
+        ('DL37', 'Boeing 747', 531);
+
+INSERT INTO bookings (customer_name, flight_number)
+VALUES
+    ('Agustine Riviera', 'DL143'),
+    ('Agustine Riviera', 'DL122'),
+    ('Alaina Sepulvida', 'DL122'),
+    ('Tom Jones', 'DL122'),
+    ('Tom Jones', 'DL53'),
+    ('Tom Jones', 'DL222'),
+    ('Sam Rio', 'DL143'),
+    ('Sam Rio', 'DL37'),
+    ('Jessica James', 'DL143'),
+    ('Jessica James', 'DL122'),
+    ('Ana Janco', 'DL222'),
+    ('Jennifer Cortez', 'DL222'),
+    ('Christian Janco', 'DL222');
+
+
+SELECT COUNT(DISTINCT flight_number) FROM flights;
+SELECT AVG(flight_mileage) FROM flights;
+SELECT AVG(aircrafts.total_aircraft_seats) FROM aircrafts;
+SELECT customer_status, AVG(total_customer_mileage) FROM customers GROUP BY customer_status;
+SELECT customer_status, MAX(total_customer_mileage) FROM customers GROUP BY customer_status;
+SELECT COUNT(*) FROM aircrafts WHERE aircraft LIKE '%Boeing%';
+SELECT * FROM flights WHERE flight_mileage BETWEEN 300 AND 2000;
+
+SELECT c.customer_status, AVG(f.flight_mileage)
+FROM bookings b
+         JOIN customers c ON b.customer_name = c.customer_name
+         JOIN flights f ON b.flight_number = f.flight_number
+GROUP BY c.customer_status;
+
+SELECT a.aircraft, COUNT(*) AS total_bookings
+FROM bookings b
+         JOIN customers c ON b.customer_name = c.customer_name
+         JOIN flights f ON b.flight_number = f.flight_number
+         JOIN aircrafts a ON f.aircraft = a.aircraft
+WHERE c.customer_status = 'Gold'
+GROUP BY a.aircraft
+ORDER BY total_bookings DESC
+LIMIT 1;
+

LabSQL/blog.sql

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+CREATE DATABASE blog;
+
+USE blog;
+
+CREATE TABLE authors (
+                         author VARCHAR(255) NOT NULL PRIMARY KEY
+);
+
+CREATE TABLE articles (
+                          author VARCHAR(255) NOT NULL,
+                          title VARCHAR(255) NOT NULL,
+                          word_count INT NOT NULL,
+                          views INT NOT NULL,
+                          FOREIGN KEY (author) REFERENCES authors(author)
+);
+
+INSERT INTO authors (author)
+VALUES
+    ('Maria Charlotte'),
+    ('Juan Perez'),
+    ('Gemma Alcocer');
+
+INSERT INTO articles (author, title, word_count, views)
+VALUES
+    ('Maria Charlotte', 'Best Paint Colors', 814, 14),
+    ('Juan Perez', 'Small Space Decorating Tips', 1146, 221),
+    ('Maria Charlotte', 'Hot Accessories', 986, 105),
+    ('Maria Charlotte', 'Mixing Textures', 765, 22),
+    ('Juan Perez', 'Kitchen Refresh', 1242, 307),
+    ('Maria Charlotte', 'Homemade Art Hacks', 1002, 193),
+    ('Gemma Alcocer', 'Refinishing Wood Floors', 1571, 7542);;