How to fix the Oracle error ORA-01535: rollback segment ‘string’ already exists or given name has prefix _SYSSMU?

In this post, you’ll learn more about the Oracle ErrorORA-01535: rollback segment ‘string’ already exists or given name has prefix _SYSSMU with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01535: rollback segment ‘string’ already exists or given name has prefix _SYSSMU

Reason for the Error ORA-01535: rollback segment ‘string’ already exists or given name has prefix _SYSSMU

Specified rollback segment already exists or given name starts with _SYSSMU.

How to fix the Error ORA-01535: rollback segment ‘string’ already exists or given name has prefix _SYSSMU ?

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

Use a different name. Note that _SYSSMU is an illegal prefix to an RBU segment.