ORA-00331: log version string incompatible with ORACLE version string
What triggered the Error:
The log was written by incompatible version of Oracle.What should we do to fix it:
Recover the database with the compatible software, shut it down cleanly, then restart with current software.
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
