表中某列被修改后触发器SQL例子

王朝mssql·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

CREATE TABLE [TEST] (

[FID] [int] IDENTITY (1, 1) NOT NULL ,

[F1] [int] NULL ,

[F2] [int] NULL ,

[F3] [int] NULL ,

CONSTRAINT [PK_TEST] PRIMARY KEY CLUSTERED

(

[FID]

) ON [PRIMARY]

) ON [PRIMARY]

GO

alter TRIGGER updatetest ON [dbo].[TEST]

FOR INSERT, UPDATE, DELETE

AS

begin

declare @F1 int,

@FID int,

@OldF1 int

if update(F1)

begin

select @OldF1=F1 from test where FID in (select FID from INSERTED)

select @FID=FID,@F1=F1 from INSERTED

PRINT 'fID = ' + convert(varchar(10),@FID)

PRINT 'OldF1 = ' + convert(varchar(10),@OldF1)

PRINT 'F1 = ' + convert(varchar(10),@F1)

end

end

go

insert test(f1,f2,f3) values(1,2,3)

go

select * from test

go

update test set f1=11 where fid=1

go

--问题:不能获得修改前的值???

 
 
 
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