| ERROR | Create Rollback Segment failed, USN string is out of range |
| CAUSE | the system runs out of undo segment number. Too many undo segments exist. |
| ACTION | drop some of the unused undo segments and retry operation. |
| ERROR | Create Rollback Segment failed, USN string is out of range |
| CAUSE | the system runs out of undo segment number. Too many undo segments exist. |
| ACTION | drop some of the unused undo segments and retry operation. |