Finished lab

lab-sql-basic-queries.sql

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+USE sakila;
+SHOW FULL tables;
+SELECT COUNT(*) FROM film;
+SELECT COUNT(*) FROM film_text;
+
+SELECT * FROM actor;
+SELECT * FROM film;
+SELECT * FROM customer;
+
+SELECT title 
+FROM film;
+
+SELECT name AS language
+FROM language;
+
+SELECT first_name
+FROM staff;
+
+SELECT DISTINCT release_year -- #4 --
+FROM film;
+
+-- Counting records for database insights:
+
+-- 5.1 Determine the number of stores that the company has.
+
+SELECT COUNT(store_id) AS number_of_stores
+FROM store;
+
+-- 5.2 Determine the number of employees that the company has.
+
+SELECT COUNT(staff_id) AS number_of_employees
+FROM staff;
+
+-- 5.3 Determine how many films are available for rent and how many have been rented.
+
+SELECT COUNT(*) AS films_available_for_rent
+FROM inventory;
+
+SELECT COUNT(*) AS films_rented
+FROM rental;
+
+
+-- 5.4 Determine the number of distinct last names of the actors in the database.
+
+SELECT COUNT(DISTINCT last_name) AS distinct_last_names
+FROM actor;
+
+-- 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 first_name, last_name
+FROM actor
+WHERE first_name LIKE 'SCARLETT';