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620. 有趣的电影
题目:
某城市开了一家新的电影院,吸引了很多人过来看电影。该电影院特别注意用户体验,专门有个 LED显示板做电影推荐,上面公布着影评和相关电影描述。
作为该电影院的信息部主管,您需要编写一个 SQL查询,找出所有影片描述为非 boring (不无聊) 的并且 id 为奇数 的影片,结果请按等级 rating 排列。
例如,下表 cinema:
+---------+-----------+--------------+-----------+
| id | movie | description | rating |
+---------+-----------+--------------+-----------+
| 1 | War | great 3D | 8.9 |
| 2 | Science | fiction | 8.5 |
| 3 | irish | boring | 6.2 |
| 4 | Ice song | Fantacy | 8.6 |
| 5 | House card| Interesting| 9.1 |
+---------+-----------+--------------+-----------+
对于上面的例子,则正确的输出是为:
+---------+-----------+--------------+-----------+
| id | movie | description | rating |
+---------+-----------+--------------+-----------+
| 5 | House card| Interesting| 9.1 |
| 1 | War | great 3D | 8.9 |
+---------+-----------+--------------+-----------+
SQL架构:
Create table If Not Exists cinema (id int, movie varchar(255), description varchar(255), rating float(2, 1));
Truncate table cinema;
insert into cinema (id, movie, description, rating) values ('1', 'War', 'great 3D', '8.9');
insert into cinema (id, movie, description, rating) values ('2', 'Science', 'fiction', '8.5');
insert into cinema (id, movie, description, rating) values ('3', 'irish', 'boring', '6.2');
insert into cinema (id, movie, description, rating) values ('4', 'Ice song', 'Fantacy', '8.6');
insert into cinema (id, movie, description, rating) values ('5', 'House card', 'Interesting', '9.1');
解题语句:
SELECT *
FROM cinema
WHERE description != 'boring' AND id % 2 = 1
ORDER BY rating DESC;
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