ORA-01594

Error: ORA-01594: attempt to wrap into rollback segment (string) extent (string) which is being freed

Causa: Undo generated to free a rollback segment extent is attempting to write into the same extent due to small extents and/or there are too many extents to free.

Acción: The rollback segment shrinking will be rolled back by the system; increase the optimal size of the rollback segment.