哪裏有東西（CASE WHEN語句）？

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WHERE Something IN (CASE WHEN statement) ??!!哪裏有東西（CASE WHEN語句）？

我想ro寫一個「select-where」cindase with cinditonal condition。
我所用「的情況下，當」中「其中ID IN」的條款，但我有以下錯誤：

Msg 512, Level 16, State 1, Line 1 
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.

這裏是我的簡化代碼：

SELECT 
    UnitsAllocation.UnitID, 
    OrganizationUnits.Title AS UnitTitle, 
    'Title' AS ExpenseTitle1, 
    SUM(UnitsAllocationDetails1.ExpenseAmount1) AS ExpenseAmount1 
FROM 
    [bdg_UnitsAllocation] UnitsAllocation LEFT OUTER JOIN 
(SELECT 
      UnitsAllocationDetails.UnitsAllocationID, 
      SUM(UnitsAllocationDetails.Amount)/1 AS ExpenseAmount1 
    FROM [bdg_UnitsAllocationDetails] UnitsAllocationDetails 
    WHERE UnitsAllocationDetails.ExpenseID IN (CASE 1 
                WHEN 1 THEN (SELECT Id FROM bdg_Expenses WHERE ParentId = 1) 
                ELSE (SELECT Id FROM bdg_Expenses WHERE Id = 1) 
               END) 

    GROUP BY UnitsAllocationDetails.UnitsAllocationID) UnitsAllocationDetails1 ON UnitsAllocationDetails1.UnitsAllocationID = UnitsAllocation.ID LEFT OUTER JOIN 
    [bdg_OrganizationUnits] OrganizationUnits ON UnitsAllocation.UnitID = OrganizationUnits.ID 
GROUP BY UnitsAllocation.UnitID, OrganizationUnits.Title

請看「WHERE UnitsAllocationDetails.ExpenseID IN ... 「
我該如何解決這個問題？

來源

2010-12-11 mahdiahmadirad

你剛剛問了同樣的問題。如果你想改變你的問題，編輯它，不要創建一個新的問題。 – 2010-12-11 09:01:04

不幸在我的地區「XXX」是forbiden pharase！並根據我們的互聯網政策進行過濾。所以我無法打開我的問題查看或編輯，然後我再次問。你在本頁再次重複XXX！ – mahdiahmadirad 2010-12-11 09:15:36

rotfl。我編輯了您的原始問題以刪除x。 – 2010-12-11 09:21:40

代替

WHERE UnitsAllocationDetails.ExpenseID IN（CASE 1 WHEN 1 THEN（SELECT ID FROM bdg_Expenses WHERE的ParentId = 1） ELSE（SELECT ID FROM bdg_Expenses WHERE ID = 1） END）使用以下

WHERE UnitsAllocationDetails.ExpenseID IN（SELECT ID FROM bdg_Expenses WHERE的ParentId = 1和l = 1 UNION ALL SELECT ID FROM bdg_Expenses其中id = 1和1 <> 1 ）

來源

2010-12-11 09:22:52 msi77

非常有用的方法 – mahdiahmadirad 2010-12-11 09:56:40

哪裏有東西（CASE WHEN語句）？

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