Question

我有以下查询生成错误消息

Msg 209，Level 16，State 1，Line 4不明确的列名'p_id'

以下是有问题的查询。

SELECT *
from (select playerperform.p_id,player.first_name, SUM (playerperform.score)as totalgoal, RANK() OVER(ORDER BY SUM(playerperform.score)DESC) Rnk
      from playerperform,player  
      Group by p_id
      )as a
WHERE Rnk = 1

Answer 1

显然，p_id和playerperform都有player列。

至少，改变：

GROUP BY p_id

要

GROUP BY playerperform.p_id

您执行隐式CROSS JOIN：

似乎也很可疑

FROM playerperform,player

我怀疑应该是INNER JOIN有一些条件，例如

FROM dbo.playerperform INNER JOIN dbo.player
ON playerperform.p_id = player.p_id

顺便说一下，p_id是列的可怕名称......

消息209，级别16，状态1，行4不明确的列名称'p_id'

1 个答案: