Question

我在订单表上有一个触发器，它将订单详细信息插入order_details表。仅在输入一行时才有效，但在一次插入多行时则无效。我已阅读多个主题＆gt;在各种网站上关于使用游标，同时使用语句，临时表等等。我尝试了一些但没有成功。有关最佳/最简单方法的任何建议，以确保我在下订单时添加所有详细行。

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER TRIGGER [dbo].[CreateOrderDetails]
ON [dbo].[Orders]
FOR INSERT 
AS
    declare @OrderStagingId uniqueidentifier
    declare @OrderType as varchar(50)
    declare @OrderID uniqueidentifier
    declare @LocationID uniqueidentifier
    declare @status as varchar (25)
    declare @vendorid as uniqueidentifier

     SELECT @OrderID = OrderID, @LocationID = LocationID, 
            @vendorid = vendorid, @OrderStagingId = OrderStagingId
     FROM inserted

     Begin

    SET NOCOUNT ON;

     -- Insert statements for trigger here

     Insert into [Brain].dbo.[Order_Details]

     SELECT     
        NEWID() AS OrderDetailId, @OrderID AS OrderId, 
        dbo.OrderStaging_Details.EcProductID,    
        dbo.OrderStaging_Details.Qty, dbo.OrderStaging_Details.Qty_Type, 
        dbo.OrderStaging_Details.Cost, dbo.OrderStaging_Details.Ext_Cost, 
        dbo.OrderStaging_Details.EnteredBy,
        NULL AS ReceivedBy, NULL AS ReceivedDate, NULL AS ReceivedQty, 
        dbo.OrderStaging_Details.OrderNote, NULL AS ReceivedNote,    
        dbo.OrderStaging_Details.UpdatedBy, dbo.OrderStaging_Details.UpdateDate
     FROM         
        dbo.Vendor_Assigned_Locations 
     INNER JOIN
        dbo.Vendor_Contacts 
     INNER JOIN
        dbo.Vendors 
     INNER JOIN
        dbo.OrdersStaging 
     INNER JOIN
        dbo.OrderStaging_Details ON dbo.OrdersStaging.OrderStagingID = dbo.OrderStaging_Details.OrderStagingID 
            ON dbo.Vendors.VendorID = dbo.OrderStaging_Details.VendorId 
            ON dbo.Vendor_Contacts.Vendor_ID = dbo.Vendors.VendorID 
            ON dbo.Vendor_Assigned_Locations.LocationID = dbo.OrdersStaging.LocationID 
               AND dbo.Vendor_Assigned_Locations.VCID = dbo.Vendor_Contacts.VCID 
     INNER JOIN
        dbo.Orders ON dbo.OrdersStaging.OrderStagingID = dbo.Orders.OrderStagingID 
                   AND dbo.Vendors.VendorID = dbo.Orders.VendorID 
                   AND dbo.Vendor_Contacts.VCID = dbo.Orders.VendorContactID 
                   AND dbo.OrdersStaging.LocationID = dbo.Orders.LocationID 
     LEFT OUTER JOIN
        dbo.Order_Details ON dbo.Orders.OrderID = dbo.Order_Details.OrderID
     WHERE     
        (dbo.OrderStaging_Details.OrderStagingID = @OrderStagingID) 
        AND (dbo.OrdersStaging.LocationID = @Locationid)    
        AND (dbo.Vendors.VendorID = @Vendorid) 
        AND (dbo.Order_Details.OrderID IS NULL)
     end

Answer 1

你选择@OrderID，@ LocationID等的外部select语句只选择插入的第一行，其中包含在拉动触发器的事务中插入的所有订单。

Use insert into detail(...)
Select NewID(), Inserted.OrderID, ... 
From Inserted
inner join ...
Where etc

代替。

Answer 2

这是因为你在考虑行而不是列。转储@variables，加入inserted。

Answer 3

您可能需要此触发器

ALTER TRIGGER [dbo].[CreateOrderDetails] ON [dbo].[Orders]
FOR INSERT 
AS 
BEGIN
  SET NOCOUNT ON;    
  -- Insert statements for trigger here    
  INSERT INTO [Brain].dbo.[Order_Details]    
  SELECT     
    NEWID() AS OrderDetailId, i.OrderID AS OrderId, 
    dbo.OrderStaging_Details.EcProductID,    
    dbo.OrderStaging_Details.Qty, dbo.OrderStaging_Details.Qty_Type, 
    dbo.OrderStaging_Details.Cost, dbo.OrderStaging_Details.Ext_Cost, 
    dbo.OrderStaging_Details.EnteredBy,
    NULL AS ReceivedBy, NULL AS ReceivedDate, NULL AS ReceivedQty, 
    dbo.OrderStaging_Details.OrderNote, NULL AS ReceivedNote,    
    dbo.OrderStaging_Details.UpdatedBy, dbo.OrderStaging_Details.UpdateDate
  FROM               
    dbo.OrdersStaging 
  INNER JOIN
    dbo.OrderStaging_Details ON dbo.OrdersStaging.OrderStagingID = dbo.OrderStaging_Details.OrderStagingID 
  INNER JOIN
    dbo.Vendors ON dbo.Vendors.VendorID = dbo.OrderStaging_Details.VendorId
  INNER JOIN
    dbo.Vendor_Contacts ON dbo.Vendor_Contacts.Vendor_ID = dbo.Vendors.VendorID 
  INNER JOIN          
    dbo.Vendor_Assigned_Locations ON dbo.Vendor_Assigned_Locations.LocationID = dbo.OrdersStaging.LocationID 
                                       AND dbo.Vendor_Assigned_Locations.VCID = dbo.Vendor_Contacts.VCID
  INNER JOIN
    dbo.Orders ON dbo.OrdersStaging.OrderStagingID = dbo.Orders.OrderStagingID 
                    AND dbo.Vendors.VendorID = dbo.Orders.VendorID 
                    AND dbo.Vendor_Contacts.VCID = dbo.Orders.VendorContactID 
                    AND dbo.OrdersStaging.LocationID = dbo.Orders.LocationID 
  INNER JOIN
    inserted i ON dbo.Orders.OrderID = i.OrderID
END

使用插入触发器处理多行

3 个答案: