Transition can occurs in a number of different situations, as follows:
The role of a target database can be transitioned to that of a normal (non-Replication-enabled) or a source database. The database can be either online or offline when the transition is performed.
If the target database is transitioned to a source database, AI areas can be added to the target database if they are not already present and AI can be started for the database.
If the target database is transitioned to a normal database, the database is available for database update operations, but it can never be transitioned to a source database.
A source database can be transitioned to a target database. The database can be either online or offline during the transition. If transition is performed on the source and the source is online, a transition failover must be performed.
A source database can be transitioned to a normal database, provided you first disable replication.
If you have defined a Replication Set, both source and target can transition together. See Transition of a Replication Set for more details.
You can configure transition to restart a transitioned database automatically after the transition process successfully completes.
The role of a target database can be transitioned to that of a normal (non-Replication-enabled) or a source database. The database can be either online or offline when the transition is performed.