Question

我的触发器由于某种原因插入4次，最后一次仅被分组。基本上我想要做的是将信息插入到我的表tbl_delete_Panel中时我想对这些数据进行分组并将分组插入tbl_delete_panel_Orderin。

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE Trigger[dbo].[deletePanelSQL]
ON [dbo].[tbl_delete_Panel]
AFTER INSERT
AS
BEGIN
     /* Insert Summed Quantity for each stud or track into tbl_delete_panel for deletion. tbl_delete_panel trigger will be triggered */
    INSERT INTO tbl_delete_panel_Orderin (Part_Name, OrderID, SumOfQTY)
       SELECT 
           tbl_delete_panel.Part_Name, tbl_delete_panel.OrderID, 
           Sum(tbl_delete_panel.QTY) AS SumOfQTY
       FROM 
           tbl_delete_panel
       GROUP BY 
           tbl_delete_panel.Part_Name, tbl_delete_panel.OrderID;
END;

Answer 1

现在，每次触发此触发器时，您都会继续从tbl_delete_panel插入完整的行。

你应该做什么是看Inserted伪表可以并且将包含多行（所以你需要处理这种情况，一个不错的，正确的基于集合的方法 - 没有游标，没有while循环！） - 并插入那些行（由导致触发器触发的语句新插入的行） - 而不是每个表都是时间！

尝试这样的事情：

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE Trigger[dbo].[deletePanelSQL]
ON [dbo].[tbl_delete_Panel]
AFTER INSERT
AS
BEGIN
     /* Insert summed quantity for each stud or track into tbl_delete_panel for deletion. tbl_delete_panel trigger will be triggered */
    INSERT INTO tbl_delete_panel_Orderin (Part_Name, OrderID, SumOfQTY)
       SELECT 
           Part_Name, OrderID, 
           Sum(QTY) AS SumOfQTY
       FROM 
           Inserted i
       GROUP BY 
           Part_Name, OrderID;
END;

SQL Server插入多次触发器插入

1 个答案: