Question

我的问题

我可以在同一个表上有2个Insert，Update触发器并让它们都工作。

我有3个表都具有完全相同的架构TestTable, TestTable2, TestTable3 为方便起见，Schema如下所示我在触发器代码下有create-schema命令：

PK - int（这是主键）名字 - vcharchar（10） TheValue - int

他们尝试将TestTable中插入和更新的行与TestTable2和TestTable3同步

如果我禁用1触发，则其他工作，反之亦然。

我的问题＆gt;这两个触发器都可以在表上运行吗

下面定义了2个触发器和模式：

    USE [WQMetaData]
GO

/****** Object:  Trigger [dbo].[TESTTABLETRIGGER]    Script Date: 05/03/2018 10:59:28 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO


-- Author:      <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
CREATE TRIGGER [dbo].[TESTTABLETRIGGER] 
   ON  [dbo].[testtable]
   AFTER INSERT, update
AS 
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;
    declare @thevalue int,@pk int, @existingPK int
    set @existingPK = 0
    select @thevalue= thevalue from inserted
    select @pk = pk from inserted
    select @existingPK =  pk from WQMetaData.dbo.TESTTABLE2 where pk = @pk


    if @existingPK <= 0
    begin
    Insert into WQMetaData.dbo.TESTTABLE2 (pk,name, thevalue)

    select
    inserted.pk,
    inserted.name,
    inserted.thevalue
    from inserted
end
if @pk > 0 
begin
    update    WQMetaData.dbo.TESTTABLE2 set thevalue = @thevalue where pk = @pk

    end 
END



GO

**2nd trigger**
USE [WQMetaData]
GO

/****** Object:  Trigger [dbo].[TESTTABLETRIGGER2]    Script Date: 05/03/2018 11:00:47 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO



-- Author:      <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
CREATE TRIGGER [dbo].[TESTTABLETRIGGER2] 
   ON  [dbo].[testtable]
   AFTER INSERT, update
AS 
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

    declare @thevalue int,@pk int, @existingPK int
    set @existingPK = 0
    select @thevalue= thevalue from inserted
    select @pk = pk from inserted
    select @existingPK =  pk from WQMetaData.dbo.TESTTABLE2 where pk = @pk


if @existingPK <= 0
    begin
      Insert into WQMetaData.dbo.TESTTABLE3 (pk,name, thevalue)
        select
        inserted.pk,
        inserted.name,
        inserted.thevalue
        from inserted
    end

if @pk > 0 
   begin
    update    WQMetaData.dbo.TESTTABLE3 set thevalue = @thevalue where pk = @pk
   end 
END




GO
USE [WQMetaData]
GO

/****** Object:  Table [dbo].[testtable]    Script Date: 05/03/2018 11:33:29 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

SET ANSI_PADDING ON
GO

CREATE TABLE [dbo].[testtable](
    [PK] [int] NOT NULL,
    [NAME] [varchar](12) NOT NULL,
    [TheValue] [int] NOT NULL
) ON [PRIMARY]

GO

SET ANSI_PADDING OFF
GO

表上的多个（插入，更新）触发器不起作用 - 为什么？可能吗？

0 个答案: