一、MySql 8.0 以下 實現排名

-- 方法一
SELECT name, score, @rank := @rank + 1 as pm
FROM scores A,
     (SELECT @rank := 0) B
ORDER BY score DESC;

-- 方法二
select C.*
from (
         SELECT A.*, @rank := @rank + 1 as pm
         FROM (
                  SELECT name, score
                  FROM scores
                  
 
ORDER BY score DESC
              ) A,
              (SELECT @rank := 0) B
     ) as C;

執行後的結果：

二、MySql 8.0 實現排名

-- 方法一
select name,score, rank() over
 
(ORDER BY score desc) as 'pm' from scores;

-- 方法二
select name,score, dense_rank() over(ORDER BY score desc) as 'pm' from scores;

-- 方法三
select name,score, row_number() over(ORDER BY score desc) as 'pm' from scores;

結果一：

結果二：

結果三：