Lab solved

sakila.sql

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+USE sakila;
+
+--  Gather actor
+
+-- Question 1. Display all available tables in the Sakila database. 
+SHOW TABLES;
+
+-- Question 2. Retrieve all the data from the tables `actor`, `film` and `customer`.
+SELECT * FROM actor;
+SELECT * FROM film;
+SELECT * FROM customer;
+
+-- Question 3. Retrieve the following columns from their respective tables:
+-- 3.1 Titles of all films from the `film` table
+SELECT title FROM film;
+
+-- 3.2 List of languages used in films, with the column aliased as `language` from the `language` table
+SELECT name AS language FROM language;
+
+-- 3.3 List of first names of all employees from the `staff` table
+SELECT first_name FROM staff;
+
+-- 4. Retrieve unique release years.
+SELECT DISTINCT release_year FROM film;
+
+-- 5. Counting records for database insights:
+-- 5.1 Determine the number of stores that the company has.
+SELECT COUNT(*) AS num_stores FROM store;
+
+-- 5.2 Determine the number of employees that the company has.
+SELECT COUNT(*) AS num_employees FROM staff;
+
+-- 5.3 Determine how many films are available for rent and how many have been rented.
+SELECT 
+  (SELECT COUNT(*) FROM film) AS total_films,
+  (SELECT COUNT(*) FROM inventory) AS films_available_for_rent,
+  (SELECT COUNT(*) FROM rental) AS films_rented;
+
+-- 5.4 Determine the number of distinct last names of the actors in the database.
+SELECT COUNT(DISTINCT last_name) AS num_distinct_last_names FROM actor;
+
+-- 6. Retrieve the 10 longest films.
+SELECT title, length 
+FROM film
+ORDER BY length DESC
+LIMIT 10;
+
+-- Use filtering techniques in order to:
+-- 7.1 Retrieve all actors with the first name "SCARLETT".
+SELECT * FROM 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 * FROM film
+WHERE title LIKE '%ARMAGEDDON%'
+  AND length > 100;
+
+-- 7.3 Determine the number of films that include Behind the Scenes content
+SELECT COUNT(*) AS num_behind_the_scenes_films
+FROM film
+WHERE special_features LIKE '%Behind the Scenes%';
+
+
+
+
+