LAb solvedv1

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%';