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sql notes: leetcode#620 not boring movies

admin 11月 12, 2020 0

Problem

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     |
+---------+-----------+--------------+-----------+

Analysis

Output all columns from table cinema:

1	SELECT * FROM cinema;

Output movies with an odd numbered ID and a description that is not ‘boring’:

1	SELECT * FROM cinema WHERE id % 2 <> 0 AND description <> 'boring';

Order the result by rating:

1	SELECT * FROM cinema WHERE id % 2 <> 0 AND description <> 'boring' ORDER BY rating DESC;

Solution

1	SELECT * FROM cinema WHERE id % 2 <> 0 AND description <> 'boring' ORDER BY rating DESC;

Link

620. Not Boring Movies
(中文版) SQL 笔记: Leetcode#620 Not Boring Movies