lab solutions added

solutions.sql

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+USE sakila;
+SHOW TABLES;
+
+SELECT * FROM actor;
+SELECT * FROM film;
+SELECT * FROM customer;
+
+SELECT title FROM film;
+SELECT * FROM language;
+SELECT name AS language FROM language;
+SELECT first_name FROM staff;
+
+SELECT release_year FROM film;
+
+SELECT * FROM store; 
+SELECT COUNT(*) FROM store;
+
+SELECT * FROM staff;
+SELECT COUNT(*) FROM staff;
+
+SELECT COUNT(*) FROM inventory;
+SELECT COUNT(*) FROM rental;
+
+SELECT COUNT(DISTINCT last_name) FROM actor;
+
+
+SELECT title, length FROM film ORDER BY length DESC LIMIT 10;
+
+
+SELECT * FROM actor WHERE first_name='SCARLETT'
+
+/*
+Challenge
+Use the sakila database to do the following tasks:
+✅ 1. Display all available tables in the Sakila database.
+✅ 2. Retrieve all the data from the tables actor, film and customer.
+✅ 3. Retrieve the following columns from their respective tables:
+	✅ 3.1 Titles of all films from the film table
+	✅ 3.2 List of languages used in films, with the column aliased as language from the language table
+	✅ 3.3 List of first names of all employees from the staff table
+
+✅ 4. Retrieve unique release years.
+✅ 5. Counting records for database insights:
+	✅ 5.1 Determine the number of stores that the company has.
+	✅ 5.2 Determine the number of employees that the company has.
+	✅ 5.3 Determine how many films are available for rent and how many have been rented.
+	✅ 5.4 Determine the number of distinct last names of the actors in the database.
+
+✅ 6. Retrieve the 10 longest films.
+✅ 7. Use filtering techniques in order to:
+	✅ 7.1 Retrieve all actors with the first name "SCARLETT".
+*/