For this topic, we are focusing in flashback database technology.
So here, you need to be able how to:
- Enable / Disable flashback database;
- Enable / Disable flashback for a tablespace;
- Alter all the flashback database parameter "db_flashback_retention_target";
One thing that I would strong recommend during the exam is: every time you plan to do some task that may mess your DB, create a restore point or make sure flashback is on.
Path to Documentation:
Oracle Database Backup and Recovery User's Guide -> 7 Using Flashback Database and Restore Points -> Using Flashback Database
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