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select title from film join inventory using(film_id) left join rental using(inventory_id) where rental_id is null order by 1 /*select title from film where film_id =( select film_id from inventory left join rental on inventory.inventory_id = rental.inventory_id where rental.rental_id is null)* классный вариант, научиться делать так же/; show status like 'Last_query_cost';
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