ORA-00265: instance recovery required, cannot set ARCHIVELOG mode
What triggered the Error:
The database either crashed or was shutdown with the ABORT option. Media recovery cannot be enabled because the online logs may not be sufficient to recover the current datafiles.What should we do to fix it:
Open the database and then enter the SHUTDOWN command with the NORMAL or IMMEDIATE option.
If this was not sufficient go over to:
Oracle Official Support Knowledge Center
Or maybe those geeks at: StackOverflow Board
Or maybe those geeks at: StackOverflow Board