What is a Linked Server?

Linked Servers is a concept in SQL Server by which we can add other SQL Server to a Group and query both the SQL Server dbs using T-SQL  Statements. With a linked server, you can create very clean, easy to  follow, SQL statements that allow remote data to be retrieved, joined  and combined with local data. Stored Procedure sp_addlinkedserver, sp_addlinkedsrvlogin will be used add new Linked Server.