ORA-55510
Mining could not start
Cause
Mining could not start for the following reasons.
- A logminer session was processing
- The database was not mounted or not opened for read and write
- Minimum supplemental logging was not enabled
- Archiving was not enabled
Action
Fix the mentioned problems and try again. Note that if you enable supplemental logging now, you will not be able to remove a transaction that has committed without supplemental logging.