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ORA-30025: DROP segment '_SYSSMU%%%%%8$' (in undo tablespace) not allowed (Doc ID 2745112.1)

Last updated on FEBRUARY 05, 2021

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


This note is for resolving the ORA-30025 error reported.

The main purpose is to provide the Database Administrators an understanding of the issue and steps to resolve the same.

SQL> drop rollback segment "_SYSSMU22_850805769$";
drop rollback segment "_SYSSMU22_850805769$"
ERROR at line 1:
ORA-30025: DROP segment '_SYSSMU22_850805769$' (in undo tablespace) not



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