This lab illustrates how minor changes in a query may have a significant impact on the execution plan. MySQL Workbench exercise Refer to the film, actor, and film_actor tables of the Sakila database. This exercise is based on the initial Sakila installation. If you have altered these tables or their data, your results may be different. Do the following in MySQL Workbench: Enter the following statements: USE sakila; SELECT last_name, first_name, ROUND(AVG(length), 0) AS average FROM actor INNER JOIN film_actor ON film_actor.actor_id = actor.actor_id INNER JOIN film ON film_actor.film_id = film.film_id WHERE title = "ALONE TRIP" GROUP BY last_name, first_name ORDER BY average;