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ORA-30012 Database Does Not Start With UNDO_MANAGEMENT=AUTO (Doc ID 258506.1)

Last updated on JANUARY 30, 2022

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 9.0.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


You have set undo_management=AUTO
You have set undo_tablespace = and either this tablespace does not exist or it is not created with 'undo' keyword. This may be because you either dropped and did not recreate the undo tablespace or recreated it without specifying 'undo' keyword.
With this configuration the database will not start and throws an error:


The undo tablespace was dropped and was not recreated or recreated without specifying the 'undo' keyword.


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