diff --git a/sakila_labsolution.sql b/sakila_labsolution.sql new file mode 100644 index 0000000..0a161ba --- /dev/null +++ b/sakila_labsolution.sql @@ -0,0 +1,68 @@ +USE sakila; + +-- 1. Displaying all tables in the Sakila database + +SHOW TABLES FROM sakila; + +-- Retrieve all the data from the tables actor, film and customer. +SELECT * FROM sakila.actor; +SELECT * FROM sakila.film; +SELECT * FROM sakila.customer; + + +-- 3.Retrieve he following columns from their respective tables: +-- 3.1 Titles of all films from the film table +SELECT title FROM sakila.film; +-- 3.2 List of languages used in films, with the column aliased as language from the language table +SELECT name as language FROM sakila.language; + +-- 3.3 List of first names of all employees from the staff table +SELECT first_name FROM sakila.staff; + + +-- 4. Retrieve unique release years. +SELECT DISTINCT release_year FROM sakila.film; +-- only 2006 + +-- 5. Counting records for database insights: +-- 5.1 Determine the number of stores that the company has. +SELECT COUNT(DISTINCT store_id) AS Num_stores FROM sakila.store; + + +-- 5.2 Determine the number of employees that the company has. +SELECT COUNT(DISTINCT staff_id) AS Num_employees FROM sakila.staff; + + +-- 5.3 Determine how many films are available for rent and how many have been rented. +-- 5.3 Number of films available for rent +SELECT COUNT(DISTINCT inventory_id) AS available_for_rent +FROM sakila.inventory; + +-- 5.3 Number of files that have been rented +SELECT COUNT(rental_id) AS rented +FROM sakila.rental; + +-- 5.4 Determine the number of distinct last names of the actors in the database. +SELECT COUNT(DISTINCT last_name) FROM sakila.actor; + + +-- 6. Retrieve the 10 longest films (lenght of 185) +SELECT title, length FROM sakila.film +ORDER BY length desc +LIMIT 10; + +-- 7. Use filtering techniques in order to: +-- 7.1 Retrieve all actors with the first name "SCARLETT". + +SELECT actor_id, first_name, last_name +FROM sakila.actor +WHERE first_name = 'SCARLETT'; + +-- 7.2 Retrieve all movies that have ARMAGEDDON in their title and have a duration longer than 100 minutes. +SELECT title, length FROM sakila.film +WHERE title LIKE '%ARMAGEDDON%' +AND length>100; + +-- 7.3 Determine the number of films that include Behind the Scenes content=538 +SELECT COUNT(special_features) FROM sakila.film +WHERE special_features LIKE '%Behind the Scenes%';