LeetCode: 620 Not Boring Movies(easy)

玲珑子_a

于 2019-04-17 14:23:55 发布

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分类专栏： LeetCode学习笔记

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本文介绍了一种使用SQL查询的技巧，通过特定的条件筛选和排序，从电影数据库中找出符合条件的电影记录，包括奇数ID和非无聊描述的电影，并按评分降序排列。

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题目：

X city opened a new cinema, many people would like to go to this cinema. The cinema also gives out a poster indicating the movies’ ratings and descriptions.

Please write a SQL query to output movies with an odd numbered ID and a description that is not 'boring'. Order the result by rating.

For example, table 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     |
+---------+-----------+--------------+-----------+

For the example above, the output should be:

+---------+-----------+--------------+-----------+
|   id    | movie     |  description |  rating   |
+---------+-----------+--------------+-----------+
|   5     | House card|   Interesting|   9.1     |
|   1     | War       |   great 3D   |   8.9     |
+---------+-----------+--------------+-----------+

代码：

SELECT * FROM cinema
WHERE (id%2 = 1) AND (description <> "boring")
ORDER BY rating DESC