mysql顺序是一个非唯一的排名？

Question

  

可能重复：
  How do I Handle Ties When Ranking Results in MySQL?

我想按Status订购表格Activepoints，然后将排名插入到列rank中。 它来了：

RANK   USERNAME   ACTIVEPOINTS

 1     monkey100     92
 2     fresnoJump    54
 3     otherUser9    54

但它应该显示非唯一的排名，如

RANK   USERNAME   ACTIVEPOINTS

 1     monkey100     92
 2     fresnoJump    54
 2     otherUser9    54

Answer 1

我认为这是通过2个UDF变量http://dev.mysql.com/doc/refman/5.0/en/user-variables.html来解决的。

SET @rank = 0, @previous_active_points = 0;
SELECT IF(@previous_active_points<>Activepoints,@rank:=@rank+1,@rank) AS rank,
@previous_active_points:=Activepoints,username,Activepoints 
FROM `status` ORDER BY Activepoints

希望它有所帮助！