How to fix the Oracle error ORA-30016: undo tablespace ‘string’ is already in use by this instance?

In this post, you’ll learn more about the Oracle ErrorORA-30016: undo tablespace ‘string’ is already in use by this instance with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-30016: undo tablespace ‘string’ is already in use by this instance

Reason for the Error ORA-30016: undo tablespace ‘string’ is already in use by this instance

the specified undo tablespace is currently used by this instance. The operation failed.

How to fix the Error ORA-30016: undo tablespace ‘string’ is already in use by this instance ?

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

If the specified undo tablespace name is wrong, reissue the statement with the correct name.