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Question

我試圖讓遊戲中的玩家以及所有其他統計的靈魂數。我正在嘗試的查詢是

SELECT t1.*, (SELECT COUNT(*) FROM t2 GROUP BY SoulLocationName WHERE SoulLocationName=t1.Name) AS SoulCount 
FROM tblAvatar t1 
JOIN tblAvatar t2 ON t1.Name = t2.SoulLocationName 

我在哪裏出錯了？

Answer 1

嘗試此查詢

SELECT t1.*, t2.SoulCount 
FROM tblAvatar t1 
JOIN(SELECT SoulLocationName,COUNT(*) as SoulCount FROM tblAvatar GROUP BY SoulLocationName) t2 ON t1.Name = t2.SoulLocationName 

Answer 2

SELECT t1.*, 
COUNT(t2.SoulLocationName) as SoulCount 
FROM tblAvatar t1 
JOIN tblAvatar t2 
ON t1.Name = t2.SoulLocationName