New Ways to Flash Back
December 2, 2008[From OTN]
First introduced in Oracle9i Database, Oracle Flashback technology comprises a group of features with which you can view data at different points in time and recover data without using point-in-time media recovery.
Oracle Database 11g offers two key new flashback technology features that continue to provide DBAs with a powerful set of data protection tools.
The article continues at http://www.oracle.com/technology/oramag/oracle/08-nov/o68ocp.html