How to fix the Oracle error ORA-30023: Duplicate undo tablespace specification?

In this post, you’ll learn more about the Oracle ErrorORA-30023: Duplicate undo tablespace specification with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-30023: Duplicate undo tablespace specification

Reason for the Error ORA-30023: Duplicate undo tablespace specification

Cannot create more than one undo tablespace during database creation

How to fix the Error ORA-30023: Duplicate undo tablespace specification ?

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

Modify the command to contain only one undo tablespace