小编典典

MySQL-在最高得分列表中排名用户

sql

我有一个MySQL查询,该查询选择users表中得分最高的3名球员,然后创建一个额外的列,为他们分配排名:

SELECT s.*, @curRank := @curRank + 1 AS rank
FROM users AS s
JOIN
( SELECT DISTINCT highscore
  FROM users
  ORDER BY highscore DESC
      LIMIT 3
) AS lim
ON s.highscore = lim.highscore 
, (SELECT @curRank := 0) r
ORDER BY s.highscore DESC ;

目前的进展

因此,如果表如下所示:

userid   name     highscore
0        sam      20
1        james    39
2        jack     10
3        harry    46
4        jennie   7

查询的结果将是这样的:

userid  name    highscore   rank
3       harry   46          1
1       james   39          2
0       sam     20          3

问题

如何更改此查询,使其在结果列表中也显示用户及其排名?例如,如果$userName = "jenny"我如何返回:

userid  name    highscore   rank
3       harry   46          1
1       james   39          2
0       sam     20          3
4       jenny   7           5   <-- Add this row and skip jack

编辑:我应该提到-我正在使用MySQL 5.0.96版


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2021-03-08

共1个答案

小编典典

对于8.0之前的版本…

SELECT *
  FROM 
     ( SELECT a.*
            , @i := @i+1 i
         FROM my_table a
         JOIN (SELECT @i:=0) vars
        ORDER 
           BY highscore DESC
            , userid 
     ) x
 WHERE name = 'jennie'
    OR i <= 3
     ORDER 
        BY i;

https://www.db-fiddle.com/f/hYsiCE1bXeTnR2HzoJkKiR/0

2021-03-08