MySQL，获取用户排名 [英] MySQL, Get users rank

问题描述

我有一个如下所示的 mysql 表:

I have a mysql table like below:

id     name     points
1      john     4635
3      tom      7364
4      bob      234
6      harry    9857

我基本上想在不选择所有用户的情况下获得单个用户排名.我只想通过 id 选择单个用户并获得由他们拥有的点数决定的用户排名.

I basically want to get an individual user rank without selecting all of the users. I only want to select a single user by id and get the users rank which is determined by the number of points they have.

例如，通过 id 3 选择排名 2 的 tom.

For example, get back tom with the rank 2 selecting by the id 3.

干杯

伊夫

推荐答案

SELECT  uo.*, 
        (
        SELECT  COUNT(*)
        FROM    users ui
        WHERE   (ui.points, ui.id) >= (uo.points, uo.id)
        ) AS rank
FROM    users uo
WHERE   id = @id

密集排名:

SELECT  uo.*, 
        (
        SELECT  COUNT(DISTINCT ui.points)
        FROM    users ui
        WHERE   ui.points >= uo.points
        ) AS rank
FROM    users uo
WHERE   id = @id

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