rank（）函數SQL

Question

我想排列以下得分表，其中相同的得分將具有相同的等級。

+----+-------+ 
| Id | Score | 
+----+-------+ 
| 1 | 3.50 | 
| 2 | 4.00 | 
| 3 | 4.00 | 
| 4 | 3.50 | 
+----+-------+ 

有人可以幫助爲什麼是以下查詢拋出語法錯誤？另外，邏輯不正確？

代碼：

select Score, RANK() OVER (order by Score desc) as rank 
from Scores 
order by Score desc; 

錯誤消息：

Line 1: SyntaxError: near '(order by Score desc) as rank 
from Scores 
order by Score desc' 

Answer 1

如：（假設你想和1居第2，而不是1和3）

SELECT x.* 
    , CASE WHEN @prev = score THEN @i:=@i ELSE @i:=@i+1 END rank 
    , @prev:=score 
    FROM my_table x 
    , (SELECT @prev:=null,@i:=0) vars 
ORDER 
    BY score DESC 
    , id; 

對於體育排名，你可以這樣做：

SELECT a.* 
    , FIND_IN_SET(score, 
        (SELECT GROUP_CONCAT(score ORDER BY score DESC) 
         -- inclusion of DISTINCT here will output as above 
         FROM my_table) 
        ) x 
    FROM my_table a; 

但也有與此解決方案