Flashback a database to a particular SCN
Exadata database machine configurations
A client’s manager left and now they need to change the email address that received the cell node alerts in the Exadata storage cells.
Pin an execute plan in memory
When a SQL query’s execution plan changes for the worse, pin the old execution plan to memory.
Make sure you have a backup of the controlfile stored with your backupsets instead of just relying on them being available in their default location.