Illustration strep040.htm shows an example of adding a destination database to an existing Streams single-source replication environment.

Additional source database configuration includes:

- Each shared object prepared for instantiation

- A propagation for the added destination database

- Added database link for added propagation

Also, the source database has existing database links for existing propagations.

Additional destination database configuration includes:

- An `ANYDATA` queue

- Instantiation SCN set for each shared object

- An apply process for the source database

- Rule sets for the apply process

The environment can include additional destination databases. No additional configuration is required for existing destination databases.