mysql查询成绩排名显示-两种排名方式

最新推荐文章于 2024-05-24 22:37:06 发布

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本文介绍两种MySQL中的排名查询方法：1134排名方式直接基于分数进行排名；1123排序方式则先按分数分组再进行排名，这两种方法能够帮助理解如何在SQL中实现复杂的排名逻辑。

1 1 3 4排名方式

mysql> select * from score;

+----+-------+
| id | Score |
+----+-------+
| 1 | 36.5 |
| 2 | 37.8 |
| 3 | 40.6 |
| 4 | 42.6 |
| 5 | 36.5 |
| 6 | 36.5 |
| 7 | 42.6 |
| 8 | 40.6 |
| 9 | 22.8 |
| 10 | 42.6 |
+----+-------+
10 rows in set

mysql> select t.score,(select count(s.score)+1 from score s where s.score>t.score) rank from score t order by t.score desc;

+-------+------+
| score | rank |
+-------+------+
| 42.6 | 1 |
| 42.6 | 1 |
| 42.6 | 1 |
| 40.6 | 4 |
| 40.6 | 4 |
| 37.8 | 6 |
| 36.5 | 7 |
| 36.5 | 7 |
| 36.5 | 7 |
| 22.8 | 10 |
+-------+------+

10 rows in set

1 1 2 3 排序方式

mysql> select t.score,(select count(s.score)+1 from (select s.score,count(s.score) from score s group by score order by score desc) s where s.score>t.score) rank from score t order by t.score desc;
+-------+------+
| score | rank |
+-------+------+
| 42.6 | 1 |
| 42.6 | 1 |
| 42.6 | 1 |
| 40.6 | 2 |
| 40.6 | 2 |
| 37.8 | 3 |
| 36.5 | 4 |
| 36.5 | 4 |
| 36.5 | 4 |
| 22.8 | 5 |
+-------+------+
10 rows in set