GA ANNOUNCEMENT - Autonomous Data Guard now available
When you enable Autonomous Data Guard on ADB, the system creates a standby database that stays "connected" to the primary database and automatically refreshes its data from the primary database.
This allows the following, depending on the state of the primary database:
If your primary database goes down, Autonomous Data Guard converts the standby database to the primary database with minimal interruption. After failover completes, Autonomous Data Guard automatically creates a new standby database.
You can perform a switchover operation, where the primary database becomes the standby database, and the standby database becomes the primary database.
Note: Autonomous Database does not provide access to the standby database.