Question

我有一个不会触发的SQL触发器，因为表中的记录是通过BULK INSERT插入的。我无权访问插入记录的代码，因此我需要修改此触发器来处理BULK INSERT。这是触发器：

    USE [testdata]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

ALTER TRIGGER [dbo].[Trigger_test] ON [dbo].[test]
    AFTER INSERT , UPDATE
AS 

BEGIN

    DECLARE @BatchId int, @Ethanol decimal(18,6), @Glucose decimal(18,6), @SampleAge varchar(50);

    SELECT @BatchId = CONVERT(int,bd.[BatchId]),
           @Ethanol = CONVERT(decimal(18,2),[Ethanol]), 
           @Glucose= CONVERT(decimal(18,2),[Glucose]), 
           @SampleAge = bd.SampleCode
    from INSERTED bd

    update [dbo].[DeSchedule] 
    SET 
            [Ethanol] = @Ethanol,
            [Glucose] = @Glucose,
            [SampleCompleted] = 1 
    WHERE [BatchID] = @BatchId AND [SampleAge] = @SampleAge
END

任何人都可以帮我修改此触发器以处理BULK INSERT。

Answer 1

除非您可以修改BULK INSERT语句，否则您将被卡住。默认情况下，触发器不会在批量插入期间运行。您必须使用FIRE_TRIGGER选项在命令中明确打开它们。

https://msdn.microsoft.com/en-us/library/ms188365.aspx

Answer 2

仅需编辑下面的BULK INSERT文件：

批量插入AdventureWorks2012.Sales.SalesOrderDetail 从'f：\ orders \ lineitem.tbl' 与（ FIELDTERMINATOR ='|' ，ROWTERMINATOR ='：\ n' ，FIRE_TRIGGERS ）; ）;

Answer 3

问题是它只选择了插入表的最后一行，我想如果你改变这样的查询就行了

update [dbo].[DeSchedule] 
    SET 
            [Ethanol] =(select CONVERT(int,bd.[Ethanol]) from inserted bd),
            [Glucose] = (select CONVERT(decimal(18,2),[Glucose]) from inserted bd),
            [SampleCompleted] = 1 
    WHERE [BatchID] = (select CONVERT(int,bd.[BatchId]) from inserted bd) AND [SampleAge] = (select bd.SampleCode from inserted bd)

修改SQL触发器以使用BULK INSERT

3 个答案: