If a person has numerous databases (because of separate application front-finishes) that offer an entire picture - for instance a CRM, accounting, and product database - what techniques are for sale to centralize/abstract this data for simple confirming?

Basically, I am wondering if there's a method to instantly pull data from multiple databases right into a central repository that's continuously up-to-date in the three databases and which can be used as confirming?

I am also available to alternative best practice suggestions?

you could have sights that join data all your other databases.

Or would you like duplicated data on all servers?

Consider creating a Data warehouse.

It is not easy to supply very specific info, since no version of SQL Server is offered, but SQL Server Data Warehouse Cribsheet has some general information.