Backup Recovery   «Prev 

Oracle Database Modes

In versions previous to Oracle 8i, the recovery process includes the following steps:
  1. Read all data buffers,
  2. Roll forward records,
  3. Rollback uncommitted records

The recovery process within Oracle8i includes the following steps:
  1. Read a limited number of data buffers
  2. The roll forward time is reduced
  3. 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.
  1. Move the archive logs
  2. Manually copy archived log files from the production datasbase
  3. 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