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 usig 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.