Managing the Redo Log You manage the redo log by completing tasks such as creating redo log groups and members, relocating and renaming redo log members, dropping redo log groups and members, and forcing log switches.
Managing Archived Redo Log Files You manage the archived redo log files by completing tasks such as choosing between NOARCHIVELOG or ARCHIVELOG mode and specifying archive destinations.
Managing Tablespaces A tablespace is a database storage unit that groups related logical structures together. The database data files are stored in tablespaces.
Managing Undo For a default installation, Oracle Database automatically manages undo. There is typically no need for DBA intervention. However, if your installation uses Oracle Flashback operations, you may need to perform some undo management tasks to ensure the success of these operations.