Oracle7 Server Concepts
Recovery Procedures
In every database system, the possibility of a system failure is always present. Should system failure occur, you must recover the database as quickly, and with as little detrimental impact on users, as possible.
Recovering from any type of system failure requires the following:
1. Determining which data structures are intact and which ones
need recovery.
2. Following the appropriate recovery steps.
3. Restarting the database so that it can resume normal operations.
4. Ensuring that no work has been lost nor incorrect data entered in the database.
The goal is to return to normal as quickly as possible while insulating database users from any problems and the possibility of losing or duplicating work.
The recovery process varies depending on the type of failure and the files of the database affected by the failure.