FLASHBACK ON while database open in Oracle 11.2 (11gR2)
Starting in Oracle 11gR2 high availability is further enhanced allowing enabling and disabling Flashback database while database is online. In Oracle 11gR2 the database does not need to be restarted to enable Flashback Database.
SQL> select * from v$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production PL/SQL Release 11.2.0.1.0 - Production CORE 11.2.0.1.0 Production TNS for 64-bit Windows: Version 11.2.0.1.0 - Production NLSRTL Version 11.2.0.1.0 - Production SQL> select flashback_on from v$database; FLASHBACK_ON ------------------ NO SQL> select status from v$instance; STATUS ------------ OPEN SQL> alter database flashback on; Database altered. SQL> select flashback_on from v$database; FLASHBACK_ON ------------------ YES SQL>
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