There is a database on the working computer at office on Microsoft SQL Server 2012. Couple of days ago something happened to it and now when opening application the error appeared: Tombid21.mdf is not a primary database file. For the first time I have seen such problem, and I don't know what to do, it is necessary to return quickly everything on the places before returning of the chief from rest. I need to repair mdf file.
Do you have a backup?