How to fix the Oracle error ORA-30046: Undo tablespace string not found in control file.?

In this post, you’ll learn more about the Oracle ErrorORA-30046: Undo tablespace string not found in control file. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-30046: Undo tablespace string not found in control file.

Reason for the Error ORA-30046: Undo tablespace string not found in control file.

The specified undo tablespace is not present in the control file.

How to fix the Error ORA-30046: Undo tablespace string not found in control file. ?

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

Modify the CREATE CONTROLFILE statement that created the current control file to include undo tablespace(s) and reissue the statement.