Undo Tablespace

Undo Tablespace
With automatic undo management, undo data is stored in an undo tablespace. Undo
tablespaces have additional properties beyond those of permanent tablespaces. There
can be multiple undo tablespaces, but only one can be active for an Oracle instance.
When you create the database using Database Configuration Assistant (DBCA), it
creates an autoextending undo tablespace named UNDOTBS1, with a maximum
extension size of 32,767 MB.
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