Illustration strep043.htm shows an example adding a source/destination database to a Streams multiple-source replication environment.

Additional configuration for existing source/destination databases includes:

- An `ANYDATA` queue to stage changes from the new source database (optional)

- Each shared object prepared for instantiation

- A propagation for the added database

- Instantiation SCN set for each shared object for the added source database

- An apply process for the added source database

- Rule sets for the added propagation and apply process

- A database link for the added propagation

Additional configuration for the added source/destination database includes:

- One or more `ANYDATA` queues

- Supplemental logging specifications

- Each shared object prepared for instantiation

- One or more capture processes

- One propagation for each of the other destination databases

- Instantiation SCN set for each shared object for each of the other source databases

- One apply process for each of the other source databases

- Rule sets for the capture process(es), propagation(s), and apply process(es)

- Conflict resolution if necessary

- A database link for each propagation

The environment can include additional source/destination databases.