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Sqlserver how to use sp_addlinkedserver to achieve multi-database query, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can gain something.

Exec sp_droplinkedsrvlogin ZYB,Null-- remove the mapping (the mapping between the directory and the remote login on the linked server) Exec sp_dropserver ZYB-- remove the remote server link EXEC sp_addlinkedserver @ server='ZYB',-- alias @ srvproduct='', @ datasrc= "/ Server2"-- the server to be accessed EXEC sp_addlinkedsrvlogin 'ZYB',-- alias' false', NULL, 'sa' -- account 'sa'-- password usage example: Select * from ZYB.CDCenter20110822.dbo.cardbase

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