錯誤在查詢中使用WHERE IN

Question

這是我嘗試運行查詢：

Select Status from [transaction] where TransactionID IN (select MAX(CAST(TransactionID AS VARCHAR(36))), sum(debit) 
FROM [transaction] 
WHERE dbo.getday(StartSaleTime) >= '5/1/2011' and dbo.getday(StartSaleTime) <= '5/3/2011' and Status > -1 And TransactionNo like 'EL%' And TransactionType = 4 
GROUP BY CustomerID, debit HAVING (COUNT(CustomerID) > 1)) 

它返回此錯誤：

Only one expression can be specified in the select list when the subquery is not introduced with EXISTS. 

Answer 1

它告訴你到底什麼是錯誤的錯誤信息。當使用in時，您只能在選擇列表中指定一列。

如果你改變你的查詢，這應該工作正常。

Select Status from [transaction] where TransactionID 

IN (select MAX(CAST(TransactionID AS VARCHAR(36))) as [TransactionID] 
FROM [transaction] 
WHERE dbo.getday(StartSaleTime) >= '5/1/2011' and dbo.getday(StartSaleTime) <= '5/3/2011' and Status > -1 And TransactionNo like 'EL%' And TransactionType = 4 
GROUP BY CustomerID, debit HAVING (COUNT(CustomerID) > 1)) 

使用EXISTS不IN

只有當你可以指定多個列，但

Answer 2

您選擇兩件事情，並嘗試使用與（ ）。在嘗試執行someId In（Id列表）時，您應該只選擇ID。

Answer 3

您的子查詢必須只返回一個字段。現在你回到二，讓整個查詢看起來有點像：

SELECT ... WHERE TransactionID IN ((a,b), (c,d), etc...) 

SQL Server不知道使用的IN東西哪列，所以它的抱怨。