SQL Server插入触发器不止一次插入

我的触发器由于某种原因插入了4次，而最后一个仅被分组。基本上我想要做的是将信息插入到我的表中tbl_delete_Panel我想将这些数据分组并将其插入到tbl_delete_panel_Orderin中。SQL Server插入触发器不止一次插入

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;

来源

2017-03-31 Robert C

您保持插入来自'tbl_delete_panel'完整的行，每次这个触发器被调用。你应该做的**是看看'Inserted'伪表，它可以包含多行，并插入这些行**（这是由触发触发器的语句新插入的） - 不是**整桌**每次！ –

现在，你一直从tbl_delete_panel插入全套行的，每到这个触发触发器。

你应该做的，而不是是看Inserted伪表，可以和将包含多个行（所以你要处理这种情况，一个漂亮的，适当的基于集合的方法 - 没有光标，没有while循环！） - 并插入那些行（它们是由触发器触发的语句新插入的） - 不是每次都是整个表！

尝试这样：

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;

来源

2017-03-31 16:42:28

SQL Server插入触发器不止一次插入

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