Oracle Database Modes
In versions previous to Oracle 8i, the recovery process includes the following steps:
- Read all data buffers,
- Roll forward records,
- Rollback uncommitted records
The recovery process within Oracle8i includes the following steps:
- Read a limited number of data buffers
- The roll forward time is reduced
- Rollback of uncommitted records is eliminated
In versions previous to Oracle 8i, the process of switching over to a standby database if the production crashes includes the following steps.
- Move the archive logs
- Manually copy archived log files from the production datasbase
- Manually apply the archived redo log files
Whereas an Oracle8 standby database cannot be read by the users, an Oracle 8i standby database is available to the users in read-only mode