pull

lab-sql-2-reviewed.sql

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+use sakila;
+
+#Select all the actors with the first name ‘Scarlett’.
+#Select all the actors with the last name ‘Johansson’.
+
+select * from actor;
+select * from actor where (first_name = "Scarlett");
+select * from actor where (last_name = "Johansson");
+
+#3 How many films (movies) are available for rent?
+#4 How many films have been rented?
+##What is the shortest and longest rental period?
+
+select * from rental;
+select max(datediff(return_date, rental_date)) from rental;
+select min(datediff(return_date, rental_date)) from rental;
+
+#What are the shortest and longest movie duration? Name the values max_duration and min_duration.
+select * from film;
+select min(length) as min_duration from film limit 1;
+select max(length) as max_duration from film limit 1;
+
+#What's the average movie duration?
+select avg(length) from film;
+
+#What's the average movie duration expressed in format (hours, minutes)? !!!!!!!
+select *, convert(length, time) as movie_duration from film;
+select SEC_TO_TIME(avg(length))/60 as film_duration from film;
+
+#How many movies longer than 3 hours?
+select * from film;
+select count(*) from film where length > 180;
+
+#Get the name and email formatted. Example: Mary SMITH - mary.smith@sakilacustomer.org. !!!!!!!!
+select * from customer;
+select (concat(lower(first_name),".", lower(last_name), "@sakilacustomer.org" )) as customer_email from customer ;
+
+
+#What's the length of the longest film title?
+select MAX(length(title)) as max_len from film;

lab-sql-2.sql

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+use sakila;
+
+select * from actor;
+select * from actor where (first_name = "Scarlett");
+select * from actor where (last_name = "Johansson");
+
+#3 How many films (movies) are available for rent?
+#4 How many films have been rented?
+##What is the shortest and longest rental period?
+
+select * from rental;
+select max(datediff(return_date, rental_date)) from rental;
+select min(datediff(return_date, rental_date)) from rental;
+
+#What are the shortest and longest movie duration? Name the values max_duration and min_duration.
+select * from film;
+select min(length) as min_duration from film limit 1;
+select max(length) as max_duration from film limit 1;
+
+#What's the average movie duration?
+select avg(length) from film;
+
+#What's the average movie duration expressed in format (hours, minutes)?
+select *, convert(length, time) as movie_duration from film;
+
+
+#How many movies longer than 3 hours?
+select * from film;
+select count(*) from film where length > 180;
+
+#Get the name and email formatted. Example: Mary SMITH - mary.smith@sakilacustomer.org.
+
+#What's the length of the longest film title?
+select MAX(length(title)) as max_len from film;
+
+
+