Execute a flashback query by selecting Flashback from the Actions, Data submenu. A flashback query enables you to view the data as it existed at a previous point in time.
The default amount of time that you can flashback is 3 hours (or 180 minutes) but the actual amount is different for each database.
Create a flashback query by using the Actions, Data submenu.
To execute a flashback query:
Edit a flashback query by clicking the flashback query filter in an interactive report.
To edit a flashback query: