[lab-sql-2] - Anna Javashvili

movies 2 - Anna Javashvili.sql

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+-- 1. Select all the actors with the first name ‘Scarlett’.
+
+SELECT *
+FROM SAKILA.ACTOR
+WHERE FIRST_NAME = 'Scarlett'
+;
+
+
+-- 2. Select all the actors with the last name ‘Johansson’.
+
+
+SELECT *
+FROM SAKILA.ACTOR
+where LAST_NAME = 'Johansson'
+;
+
+-- 3. How many films (movies) are available for rent?
+SELECT *
+FROM SAKILA.INVENTORY;
+
+SELECT COUNT(DISTINCT FILM_ID) FROM SAKILA.INVENTORY;
+
+-- 4. How many films have been rented?
+
+SELECT *
+FROM SAKILA.RENTAL;
+
+SELECT COUNT(DISTINCT RENTAL_ID) FROM SAKILA.RENTAL;
+
+-- 5. What is the shortest and longest rental period?
+
+SELECT *
+FROM SAKILA.RENTAL;
+
+SELECT rental_date, return_date, DATEDIFF(return_date, rental_date) AS rental_duration 
+
+FROM SAKILA.RENTAL
+
+ORDER BY  rental_duration DESC
+LIMIT 1;
+
+-- shortest rental period
+
+SELECT rental_date, return_date, DATEDIFF(return_date, rental_date) AS rental_duration 
+
+FROM SAKILA.RENTAL
+
+ORDER BY  rental_duration ASC;
+
+-- 6. What are the shortest and longest movie duration? Name the values max_duration and min_duration.
+
+SELECT * 
+FROM SAKILA.FILM;
+
+
+SELECT max(LENGTH) AS MAX_DURATION from SAKILA.FILM;
+
+SELECT MIN(LENGTH) AS MIN_DURATION from SAKILA.FILM;
+
+-- 7. What's the average movie duration?
+
+Select avg(LENGTH) from SAKILA.FILM;
+
+-- 8. What's the average movie duration expressed in format (hours, minutes)?
+
+SELECT
+    AVG(LENGTH) DIV 60 AS avg_duration_hours,
+    AVG(LENGTH) MOD 60 AS avg_duration_minutes
+FROM
+    SAKILA.FILM;
+
+
+-- 9. How many movies longer than 3 hours?
+
+SELECT * 
+FROM SAKILA.FILM;
+
+SELECT COUNT(*)
+FROM SAKILA.FILM
+WHERE (LENGTH > 180);
+
+-- 10. Get the name and email formatted. Example: Mary SMITH - mary.smith@sakilacustomer.org.
+
+SELECT * 
+FROM SAKILA.CUSTOMER;
+
+SELECT 
+    CONCAT(UPPER(SUBSTRING(FIRST_NAME, 1, 1)), LOWER(SUBSTRING(FIRST_NAME, 2, LENGTH(FIRST_NAME)))) AS formatted_first_name, upper(LAST_NAME) AS FORMATTED_LAST_NAME, lower(EMAIL) AS FORMATTED_EMAIL
+FROM 
+    SAKILA.CUSTOMER;
+
+-- 11. What's the length of the longest film title?
+
+SELECT max(length(title))
+FROM SAKILA.FILM;