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exec sp_addlinkedserver 'myserver1', '', 'sqloledb','127.0.0.1'
go
exec sp_addlinkedsrvlogin 'myserver1', 'false', null, 'sa', 'Abcdefg1'
go
select * from myserver1.mydata.dbo.t_user_1
go
exec sp_droplinkedsrvlogin 'myserver1', 'sa'
go
exec sp_dropserver 'myserver1', 'droplogins'
go