Question: What is the film title and inventory id of the item in the inventory which was rented most frequently?
Schema: create table film (title varchar, film_id varchar, PRIMARY KEY (title)); create table inventory (inventory_id varchar, film_id varchar, PRIMARY KEY (inventory_id)); create table rental (inventory_id varchar, PRIMARY KEY (inventory_id))
SQL: select t1.title, t2.inventory_id from film as t1 join inventory as t2 on t1.film_id = t2.film_id join rental as t3 on t2.inventory_id = t3.inventory_id group by t2.inventory_id order by count(*) desc limit 1