How do I create and query linked database servers in SQL Server?

Question

I need to do a join across two different database servers (IPs 10.0.0.50 and 10.0.0.51). What\'s the best way?

Answer 1

I know that the answers above are good, but wanted to share some details that I hope others will find helpful. Worth to mention is the user access part, which I think people will need help with.

set up the link:

exec sp_addlinkedserver @server='10.10.0.10\MyDS';

set up the access for remote user, example below:

exec sp_addlinkedsrvlogin '10.10.0.10\MyDS', 'false', null, 'adm', 'pwd';

see the linked servers and user logins:

exec sp_linkedservers;

select * from sys.servers;

select * from sys.linked_logins;

run the remote query:

select * from [10.10.0.10\MyDS].MyDB.dbo.TestTable;

drop the linked server and the created login users (adm/pwd)

exec sp_dropserver '10.10.0.10\MyDS', 'droplogins'; -- drops server and logins

resources:

sp_addlinkedserver

sp_dropserver

sp_addlinkedsrvlogin

sp_droplinkedsrvlogin