mysql按rank_pts设置排名

Question

我有一个包含列的表：

id name rank rank_pts
1  Nick  0    15
2  N0NE  0    12
3  Non2  0    26

如何按rank_pts设置等级？

Answer 1

你需要一个变量。

SET @i= 0;
UPDATE your_table SET rank = (@i:=@i+1) ORDER BY rank_pts;

Answer 2

update your_table
join (SELECT @row:= 0) r
set rank = (@row := @row + 1)
order by rank_pts desc;

Answer 3

查看this answer不仅按rank_pts排名，还如何处理两个rank_pts相同的情况。用rank_pts替换得分