Question

ALTER FUNCTION [PtOrderDetailID]
    (@OrderDetail_ID INT)  
RETURNS INT  
AS  
BEGIN  
    DECLARE @OriginalOrderDetail_ID AS INT  
    SET @OriginalOrderDetail_ID = @OrderDetail_ID  

    IF (SELECT COUNT(1) FROM TRRawDetail OD (NOLOCK) 
        WHERE OD.OrderDetail_ID = @OriginalOrderDetail_ID 
          AND OD.RelatedOrderDetail_ID IS NOT NULL 
          AND OD.RelatedOrderDetail_ID <> 0) > 0  
        SET @OriginalOrderDetail_ID = (SELECT TOP 1 OD.RelatedOrderDetail_ID 
                                       FROM TRRawDetail OD (NOLOCK)  
                                       WHERE OD.OrderDetail_ID = @OriginalOrderDetail_ID 
                                         AND OD.RelatedOrderDetail_ID IS NOT NULL 
                                         AND OD.RelatedOrderDetail_ID <> 0)  

    SET @OriginalOrderDetail_ID = PtOrderDetailID(@OriginalOrderDetail_ID)  

    RETURN @OriginalOrderDetail_ID;  
END
GO

该函数是从存储过程中调用的，但会引发“最大限制（32）”错误。请帮助解决此问题

第217条消息，第16级，状态1，第200行
超过最大存储过程，函数，触发器或视图嵌套级别（限制32）

由于这个原因，我认为这是在嵌套递归调用内部调用的函数。该如何解决？

Answer 1

看一下您的函数，即使没有relatedorder_detail，您似乎也正在递归调用它，在这种情况下，它将继续使用最初传递的OrderDetail_ID递归调用。您应该将递归调用放在IF块中

ALTER FUNCTION [PtOrderDetailID]
    (@OrderDetail_ID INT)  
RETURNS INT  
AS  
BEGIN  
    DECLARE @OriginalOrderDetail_ID AS INT  
    SET @OriginalOrderDetail_ID = @OrderDetail_ID  

    IF (SELECT COUNT(1) FROM TRRawDetail OD (NOLOCK) 
        WHERE OD.OrderDetail_ID = @OriginalOrderDetail_ID 
          AND OD.RelatedOrderDetail_ID IS NOT NULL 
          AND OD.RelatedOrderDetail_ID <> 0) > 0  
      BEGIN
        SET @OriginalOrderDetail_ID = (SELECT TOP 1 OD.RelatedOrderDetail_ID 
                                       FROM TRRawDetail OD (NOLOCK)  
                                       WHERE OD.OrderDetail_ID = @OriginalOrderDetail_ID 
                                         AND OD.RelatedOrderDetail_ID IS NOT NULL 
                                         AND OD.RelatedOrderDetail_ID <> 0)  

    SET @OriginalOrderDetail_ID = PtOrderDetailID(@OriginalOrderDetail_ID)  
    END
    RETURN @OriginalOrderDetail_ID;  
END
GO

SQL函数引发的错误最大限制错误

1 个答案: