Oracle : Ошибка ORA-01581

"attempt to use rollback segment (%s) new extent (%s) which is being allocated"
*Cause: Undo generated to extend a rollback segment run out of current
undo block space and is attempting to write into the new extent
which has not been completely allocated.
*Action: The rollback segment extending will be rollbacked by the system,
no more extension will be possible untill the next extent is
freed up by rolling back or committing other transactions.

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