使用子查询的方式找出属于Action分类的所有电影对应的title以及description

题目描述

CREATE TABLE IF NOT EXISTS film (
film_id smallint(5)  NOT NULL DEFAULT '0',
title varchar(255) NOT NULL,
description text,
PRIMARY KEY (film_id));

CREATE TABLE category  (
category_id  tinyint(3)  NOT NULL ,
name  varchar(25) NOT NULL, `last_update` timestamp,
PRIMARY KEY ( category_id ));

CREATE TABLE film_category  (
film_id  smallint(5)  NOT NULL,
category_id  tinyint(3)  NOT NULL, `last_update` timestamp);

解题方案

select f.title,f.description
from film as f, film_category as fc
where f.film_id = fc.film_id
and fc.category_id in (
select category_id
from category
where name='Action'
)