SQL Server插入觸發器不止一次插入

我的觸發器由於某種原因插入了4次，而最後一個僅被分組。基本上我想要做的是將信息插入到我的表中tbl_delete_Panel我想將這些數據分組並將其插入到tbl_delete_panel_Orderin中。SQL Server插入觸發器不止一次插入

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;

來源

2017-03-31 Robert C

您保持插入來自'tbl_delete_panel'完整的行，每次這個觸發器被調用。你應該做的**是看看'Inserted'僞表，它可以包含多行，並插入這些行**（這是由觸發觸發器的語句新插入的） - 不是**整桌**每次！ –

現在，你一直從tbl_delete_panel插入全套行的，每到這個觸發觸發器。

你應該做的，而不是是看Inserted僞表，可以和將包含多個行（所以你要處理這種情況，一個漂亮的，適當的基於集合的方法 - 沒有光標，沒有while循環！） - 並插入那些行（它們是由觸發器觸發的語句新插入的） - 不是每次都是整個表！

嘗試這樣：

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;

來源

2017-03-31 16:42:28

SQL Server插入觸發器不止一次插入

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