In this post, you’ll learn more about the Oracle ErrorORA-30036: unable to extend segment by string in undo tablespace ‘string’ with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-30036: unable to extend segment by string in undo tablespace ‘string’
Reason for the Error ORA-30036: unable to extend segment by string in undo tablespace ‘string’
the specified undo tablespace has no more space available.
How to fix the Error ORA-30036: unable to extend segment by string in undo tablespace ‘string’ ?
You can fix this error in Oracle by following the below steps
Add more space to the undo tablespace before retrying the operation. An alternative is to wait until active transactions to commit.