How to fix the Oracle error ORA-01581: attempt to use rollback segment (string) new extent (string) which is being allocated?

In this post, you’ll learn more about the Oracle ErrorORA-01581: attempt to use rollback segment (string) new extent (string) which is being allocated with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01581: attempt to use rollback segment (string) new extent (string) which is being allocated

Reason for the Error ORA-01581: attempt to use rollback segment (string) new extent (string) which is being allocated

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.

How to fix the Error ORA-01581: attempt to use rollback segment (string) new extent (string) which is being allocated ?

You can fix this error in Oracle by following the below steps

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.