lab complete - sql

sql-scripts/1-create-blog-tables.sql

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+create table authors (
+     author_id int auto_increment primary key,
+     first_name varchar(255),
+     last_name varchar(255)
+);
+
+create table posts (
+       post_id int auto_increment primary key,
+       title varchar(255),
+       word_count int,
+       views int
+);
+
+create table author_post (
+         author_post_id int auto_increment primary key,
+         author_id int,
+         post_id int
+);

sql-scripts/2-create-flight-tables.sql

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+
+create table customers (
+           customer_id int auto_increment primary key,
+           first_name varchar(255),
+           last_name varchar(255),
+           status varchar(255),
+           mileage int
+);
+
+
+create table flights (
+             flight_id int auto_increment primary key,
+             flight_number varchar(255),
+             aircraft varchar(255),
+             seats int,
+             mileage int
+);
+
+create table customer_flight (
+             customer_flight_id int auto_increment primary key,
+             customer_id int,
+             flight_id int
+);
+
+
+

sql-scripts/3-insert-into-blog-database.sql

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+
+# Insert into Authors
+INSERT INTO authors (first_name, last_name) VALUES ('Maria', 'Charlotte');
+
+INSERT INTO authors (first_name, last_name) VALUES ('Juan', 'Perez');
+INSERT INTO authors (first_name, last_name) VALUES ('Gemma', 'Alcocer');
+
+
+# Insert into Posts
+INSERT INTO posts (title, word_count, views)
+VALUES
+    ('Best Paint Colors', 814, 14),
+    ('Small Space Decorating Tips', 1146, 221),
+    ('Hot Accessories', 986, 105),
+    ('Mixing Textures', 765, 22),
+    ('Kitchen Refresh', 1242, 307),
+    ('Homemade Art Hacks', 1002, 193),
+    ('Refinishing Wood Floors', 1571, 7542);
+
+
+# Insert into author_post
+insert into author_post (author_id, post_id) values (1, 1), (1,3), (1,4), (1,6),(2,5),(3,7);
+
+
+
+
+

sql-scripts/4-insert-into-flight-database.sql

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+
+insert into customers (first_name, last_name, status, 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 flights (flight_number, aircraft, seats, mileage) values
+                  ('DL143', 'Boeing 747', 400, 135),
+                  ('DL122', 'Airbus A330', 236, 4370),
+                  ('DL53', 'Boeing 777', 264, 2078),
+                  ('DL222', 'Boeing 777', 264, 1765),
+                  ('DL37', 'Boeing 777', 400, 531);
+
+
+
+insert into customer_flight (customer_id, flight_id) values
+                                                         (1,	1),
+                                                         (1,	1),
+                                                         (1,	1),
+                                                         (1,	1),
+                                                         (1,	2),
+                                                         (2,	2),
+                                                         (3,	2),
+                                                         (3,	3),
+                                                         (3,	4),
+                                                         (4,	1),
+                                                         (4,	1),
+                                                         (4,	5),
+                                                         (5,	1),
+                                                         (5,	2),
+                                                         (6,	4),
+                                                         (7,	4),
+                                                         (8,	4);

sql-scripts/5-airline-scripts.sql

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+
+
+# 3. Total Flights
+select count(flights.flight_number) as total_flights from flights;
+
+# 4. Average Flight Distance
+select avg(flights.mileage) as average_distance from flights;
+
+# 5. Average Number of Seats
+select avg(flights.seats) as average_seats from flights;
+
+# 6. Average Miles by Customer
+select status, avg(customers.mileage) as average_mile_per_customer from customers group by status;
+
+# 7. Maximum Miles by Customer
+select status, max(customers.mileage) as max_mile_per_customer from customers group by status;
+
+
+# 8. Flights containing Boeing
+select count(flights.flight_number) as Boeing_Flights from flights where aircraft like '%Boeing%';
+
+# 9. Distance btn 300 - 2000
+select * from flights where mileage between 300 and 2000;
+
+# 10. Average distance by customer status
+select status, avg(flights.mileage) as average_distance from customers join customer_flight on customers.customer_id = customer_flight.customer_id join flights on flights.flight_id = customer_flight.flight_id group by status;
+
+# 11. Gold status most booked flight
+select flight_number, status, count(flight_number) as flights from customers join customer_flight on customers.customer_id = customer_flight.customer_id join flights on flights.flight_id = customer_flight.flight_id where status = 'Gold' group by flight_number order by flights desc ;
+
+
+
+
+