Question

我想写一个MySQL查询来排名分数。如果两个分数之间存在平局，则两者应具有相同的排名。在平局之后，下一个排名数字应该是下一个连续的整数值。换句话说，应该没有＆＃34;漏洞＆＃34;在队伍之间。

+-------+------+
| Score | Rank |
+-------+------+
| 4.00  | 1    |
| 4.00  | 1    |
| 3.85  | 2    |
| 3.65  | 3    |
| 3.65  | 3    |
| 3.50  | 4    |
+-------+------+

根据上述分数表，查询应生成以下报告（按最高分数排序）

SELECT  score,Rank
 FROM
 (
  SELECT  score,
      @rn1 := if(@pk1=score,@rn1, @rn1+@val) as Rank,
      @val := if(@pk1=score,@val+1, 1 ) as value,
      @pk1 := score

  FROM
(SELECT  score FROM scores ORDER BY score) as rank) as scores;

我尝试过类似下面的内容设置@ pk1 =＆＃39;＆＃39 ;; 设置@ rn1 = 1; 设置@val = 1;

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但是上面没有任何工作，任何人都可以帮助这个

mysql查询做排名功能

0 个答案: