Database Reference
In-Depth Information
This will complete the recovery process and you will realize that
no data will get lost i.e. everything that you entered or changed
after the last whole database backup will get recovered by Oracle
by applying all the redo log files.
Difference between Recovery In ARCHIVELOG mode &
NOARCHIVELOG mode
In NOARCHIVELOG mode, the transactions that got processed
after the last complete backup, will get lost where as in
ARCHIVELOG mode no data will get lost i.e. everything that
you entered or changed after the last whole database backup will
get recovered by Oracle by applying all the redo log files
including the ones got archived by the Archiver process.
RMAN based Online/Offline backup
RMAN or in other words the recovery manager is the utility that
comes with Oracle software and helps in the backup and
recovery process. What it does is like OEM, it communicates
with Oracle Server using SQL in the background.
RMAN requires a repository or storage area to store information
about the database that needs to be backed up or recovered. That
repository is called RMAN repository and remember it does not
contain the backup itself rather it contains the information
regarding target database.
Search WWH ::
Custom Search