1
Je veux écrire une "clause de sélection" selon les conditions conditionnelles! bu J'ai erreur:
O Som quelque chose dans (déclaration CASE WHEN)?
Msg 512, Level 16, State 1, Line 2
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
Comment puis-je résoudre ce problème ??
voici mon code simplifié:
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
s'il vous plaît consulter "CASE" et "IN" déclaration.
Le cas de '1 = 1' sera toujours vrai. Pourquoi utilisez-vous un 'CASE' là? Pourquoi ne pas simplement s'en débarrasser, donc le 'SELECT ID FROM bdg_Expenses O WH ParentId = 1' ne sera pas une expression? – outis
Je l'ai simplifié. l'instruction when à l'origine est "WHEN @Level = 1 THEN ..." – mahdiahmadirad