题解 sql224
使用子查询的方式找出属于Action分类的所有电影对应的title,description
https://www.nowcoder.com/practice/2f2e556d335d469f96b91b212c4c203e
select film.title,film.description
from film
where film_id in (
select film_id from film_category
where category_id in (
select category_id from category
where name='Action'
)
)
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