[lab-sql-2]Filipa T

[lab-sql-2]Filipa T.sql

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+-- Select all the actors with the first name ‘Scarlett’.
+select *
+from sakila.actor
+where first_name = 'Scarlett'
+;
+
+-- Select all the actors with the last name ‘Johansson’.
+
+select *
+from sakila.actor
+where last_name = 'Johansson'
+;
+
+-- How many films (movies) are available for rent?
+
+select count(inventory_id)
+from sakila.inventory
+;
+
+-- 4581 films are available to rent
+
+-- How many films have been rented?
+
+select count(rental_id)
+from sakila.rental
+;
+
+-- 16044 films were rented
+
+-- What is the shortest and longest rental period
+
+select max(rental_duration)
+from sakila.film
+;
+
+select min(rental_duration)
+from sakila.film
+;
+
+-- What are the shortest and longest movie duration? Name the values max_duration and min_duration.
+
+select max(length) as max_duration
+from sakila.film
+;
+
+-- 185 minutes
+
+select min(length) as max_duration
+from sakila.film
+;
+
+-- 46 minutes
+
+-- What's the average movie duration?
+
+select avg(length)
+from sakila.film
+;
+
+-- 115,27 minutes
+
+-- What's the average movie duration expressed in format (hours, minutes)?
+
+select sec_to_time(avg(length)*60) as length_avg
+from sakila.film
+;
+
+-- its 1:55:16
+
+-- How many movies longer than 3 hours?
+
+select count(*) as crazy_long_films
+from sakila.film
+where length > '180'
+;
+
+-- There are 39
+
+-- Get the name and email formatted. Example: Mary SMITH - mary.smith@sakilacustomer.org.
+
+select *, concat(first_name, ' ', last_name, ' - ', lower(email)) as full_info
+from sakila.customer
+;
+
+-- What's the length of the longest film title?
+
+select max(length(title)) as longest_title_length
+from sakila.film
+;
+
+-- its 27 characters
+
+