即時(shí)同步兩個(gè)表的實(shí)現(xiàn)方法

測(cè)試環(huán)境:SQL2000,遠(yuǎn)程主機(jī)名:xz,用戶名:sa,密碼:無(wú),數(shù)據(jù)庫(kù)名:test
    --創(chuàng)建測(cè)試表,不能用標(biāo)識(shí)列做主鍵,因?yàn)椴荒苓M(jìn)行正常更新
    --在本機(jī)上創(chuàng)建測(cè)試表,遠(yuǎn)程主機(jī)上也要做同樣的建表操作,只是不寫(xiě)觸發(fā)器
    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
    --創(chuàng)建同步的觸發(fā)器
    create trigger t_test on test
    for insert,update,delete
    as
    set XACT_ABORT on
    --啟動(dòng)遠(yuǎn)程服務(wù)器的MSDTC服務(wù)
    exec master..xp_cmdshell ’isql /S"xz" /U"sa" /P"" /q"exec master..xp_cmdshell ’’net start msdtc’’,no_output"’,no_output
    --啟動(dòng)本機(jī)的MSDTC服務(wù)
    exec master..xp_cmdshell ’net start msdtc’,no_output
    --考試大提示: 進(jìn)行分布事務(wù)處理,如果表用標(biāo)識(shí)列做主鍵,用下面的方法
    BEGIN DISTRIBUTED TRANSACTION
    delete 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 inserted
    commit tran
    go
    --插入數(shù)據(jù)測(cè)試
    insert into test
    select 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’
    --刪除數(shù)據(jù)測(cè)試
    delete from test where id in(1,4,6)
    --更新數(shù)據(jù)測(cè)試
    update test set name=name+’_123’ where id in(3,5)
    --顯示測(cè)試的結(jié)果
    select * from test a full join
    openrowset(’sqloledb’,’xz’;’sa’;’’,test.dbo.test) b on a.id=b.id