CAN WE ENABLE FLASHBACK IN OPEN MODE IN ORACLE?
I suddenly had a thought in my mind that if we can enable flashback in open mode or should i need a database bounce to mount state.
[oracle@exdbadm01 ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Fri Aug 6 23:30:30 2021
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
kish@exdbx<>select flashback_on from v$database;
FLASHBACK_ON
------------------
NO
Yes of course, we can enable flashback when the database is in open mode without a bounce from 11g version onwards. But we should make sure that FRA is enabled
kish@exdbx<>show parameter db_Recovery
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_recovery_file_dest string +FRA
db_recovery_file_dest_size big integer 9844M
kish@exdbx<>alter database flashback on;
Database altered.
Elapsed: 00:00:25.33
kish@exdbx<>select flashback_on from v$database;
FLASHBACK_ON
------------------
YES