We did an upgrade from SQL 2005 to SQL 2012 a week and now we are finding that one of our software vendors does not support SQL 2012 and we are running into some problems with the application not working properly. I have changed the options for that one database to be in 2008 compatibility mode but we are still seeing errors. We also have a 2008 R2 server on site and I am wondering how difficult or possible would it be to move the database over to that server now. We also still have SQL 2005 on this same server so another might be to run that database still on that version of SQL? I am not sure if that is even possible to run 2 versions of SQL on one box.
Thanks
-Scott