Question

我正在尝试创建一个存储过程，该存储过程将更新某个表并使用一个int列表。相同的逻辑用于单个更新，但对于此表，需要更新多个行。

但是，出现此错误： “子查询返回的值超过1个。当子查询遵循=，！=，<，<=，>，> =或将子查询用作表达式时，不允许这样做。”

是否有任何方法可以使此合并适用于多行？还是我需要完全改变逻辑？

ALTER PROCEDURE [dbo].[P_ClientBalanceDetails_ExecuteComplex_RefreshFromClawbacks]      
    @ID AS dbo.IntList READONLY,
    @WorkflowInstanceID int null,
    @AdjustmentFileID int null, 
    @PeriodID int null

AS
BEGIN

SET NOCOUNT ON;

--AGENTS
MERGE INTO ClientBalanceDetails AS TARGET
USING (
    SELECT
        Clawbacks.ID,
        Clawbacks.ClientBalanceID,
        Clawbacks.AgentClientBalanceDetailID,       
        Clawbacks.ValueDate,
        Clawbacks.ClientID,
        Clawbacks.Amount,
        Clawbacks.Reason,
        Clawbacks.ConfirmationStatus,
        Clawbacks.UnderProrationReview,
        Clawbacks.CreatedBy,
        Clawbacks.CreatedDate,
        Clawbacks.UpdatedBy,
        Clawbacks.UpdatedDate,
        Clawbacks.DeletedBy,
        Clawbacks.DeletedDate,
        Clawbacks.PostBillingDisputeID,
        T05_Periods.FirstDay FirstDay           

    FROM 
        Clawbacks WITH (NOLOCK)             
        INNER JOIN ClientBalances WITH (NOLOCK) ON Clawbacks.ClientBalanceID = ClientBalances.ID                             
        INNER JOIN T05_Periods WITH (NOLOCK) ON ClientBalances.PeriodID = T05_Periods.ID        

    WHERE                   
        ClientBalances.DeletedDate IS NULL
        AND (@WorkflowInstanceID IS NULL OR Clawbacks.WorkflowInstanceID = @WorkflowInstanceID)
        AND (@AdjustmentFileID IS NULL OR Clawbacks.AdjustmentFileID = @AdjustmentFileID)
        AND (@PeriodID IS NULL OR T05_Periods.ID = @PeriodID)
        AND (Clawbacks.ID IN (SELECT ID FROM @ID))
        AND (Clawbacks.ConfirmationStatus IN (@ConfirmedStatus, @UnConfirmedStatus, @RejectedStatus) )
        AND (Clawbacks.UnderProrationReview IS NULL OR Clawbacks.UnderProrationReview = 0)              

) AS SOURCE
--Insert new compensations
ON SOURCE.AgentClientBalanceDetailID = TARGET.ID

Answer 1

您的select语句返回具有相同SOURCE.AgentClientBalanceDetailID的多个记录。如果源记录重复，则添加DISTINCT关键字将解决此问题。

如果具有相同AgentClientBalanceDetailID的记录甚至只改变一列，则说明您的逻辑存在缺陷，数据库将不允许合并。他们这样做是因为SQL必须始终保持一致，而不管记录的顺序如何。同一键（AgentClientBalanceDetailID）的列值各不相同，这意味着您将根据选择结果集中记录的顺序获得不同的更新结果。

使用合并成多行

1 个答案: