Incompatible control file
I attempted to upgrade 10.2.0.1 to 11.2 but things went wrong. So, I am trying to start the source database but I get the following error: ORA-00201 control file version 11.2.0.0.0 incompatible with ORACLE version 10.2.0.1.0. Is there any way I can make this control file compatible with my source DB? I am no DB admin but I think I may have a backupset but I have no idea what's in it and how to restore controlfile from it.