mysql排序與一個不唯一的排名？

Question

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

我想用Activepoints訂購表Status並插入到秩一列rank。 它配備：

RANK USERNAME ACTIVEPOINTS 

1  monkey100  92 
2  fresnoJump 54 
3  otherUser9 54 

，但它應該顯示不是唯一的行列像

RANK USERNAME ACTIVEPOINTS 

1  monkey100  92 
2  fresnoJump 54 
2  otherUser9 54 

Answer 1

我認爲這是解決了2個UDF變量http://dev.mysql.com/doc/refman/5.0/en/user-variables.html。

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 

希望它有幫助！