ORA-00356 Inconsistent lengths in change description

Cause: A change record in the redo log contains lengths that do not add up to a consistent value. The log is corrupted in some way. Action: Do recovery with a good version of the log or do time based recovery up to the indicated time.

ORA-00354 Corrupt redo log block header

Cause: The block header on the redo block indicated by the accompanying error, is not reasonable. Action: Do recovery with a good version of the log or do time based recovery up to the indicated time. If this happens when archiving, archiving of the problem log can be skipped by clearing the log with the…