sqlserver建dblink

--establish connection 
exec sp_addlinkedserver'ITSV','','SQLOLEDB','IP address without port'

exec sp_addlinkedsrvlogin'ITSV' ,'false' ,null , 'username' ,'password'
--test
select* from ITSV.Meetrend.dbo.TcCustomerAuth


drop table TcCustomerAuth copy data from official library select * into TcCustomerAuth from ITSV.Meetrend.dbo.TcCustomerAuth;