SCCM 2012 R2 TESTDBUPGRADE
Before upgrading SCCM 2012 to for example 2012 R2 we should test the upgrade on a copy of the database. http://technet.microsoft.com/en-us/library/8b6ff5c8-3c84-49fb-8bc7-930bed865de5#BKMK_TestSiteDBUpgrade The documentation states: Make a copy of the site database, and then restore that copy to an instance of SQL Server that uses the same edition as your site