SQL Server用触发器实时同步两个表

本文介绍如何SQL Server用触发器实时同步两个表，直接上代码吧。

--数据较少时,可以手工同步,更方便控制

--用触发器即时同步两个表的实例:

--测试环境:SQL2000,远程主机名:xz,用户名:sa,密码:无,数据库名:test

--创建测试表,不能用标识列做主键,因为不能进行正常更新--在远程主机上建表if exists (select * from dbo.sysobjects where id = object_id(N'[test]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)drop table [test]

create table test(id int not null constraint PK_test primary key?,name varchar(10))go

--以下操作在本机进行--在本机上建表及做同步处理的工作if exists (select * from dbo.sysobjects where id = object_id(N'[test]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)drop table [test]

create table test(id int identity(1,1) primary key?,name varchar(10))go

--创建同步的触发器create trigger t_test on testfor insert,update,deleteasset? XACT_ABORT on--启动远程服务器的MSDTC服务exec master..xp_cmdshell 'isql /S"xz" /U"sa" /P"" /q"exec master..xp_cmdshell ''net start msdtc'',no_output"',no_output

--启动本机的MSDTC服务exec master..xp_cmdshell 'net start msdtc',no_output

--进行分布事务处理,如果表用标识列做主键,用下面的方法BEGIN DISTRIBUTED TRANSACTIONdelete from openrowset('sqloledb','xz';'sa';'',test.dbo.test)?where id in(select id from deleted)insert into openrowset('sqloledb','xz';'sa';'',test.dbo.test)?select * from insertedcommit trango

--插入数据测试insert into testselect 1,'aa'union all select 2,'bb'union all select 3,'c'union all select 4,'dd'union all select 5,'ab'union all select 6,'bc'union all select 7,'ddd'

--删除数据测试delete from test where id in(1,4,6)

--更新数据测试update test set name=name+'_123' where id in(3,5)

--显示测试的结果select * from test a full joinopenrowset('sqloledb','xz';'sa';'',test.dbo.test) b on a.id=b.id

文章引用自：http://blog.csdn.net/DigJim/archive/2004/09/03/94032.aspx