This illustration shows an example of an Oracle Streams single-source replication environment.
The source database includes:
Supplemental logging specifications
A capture process and/or synchronous capture
One propagation for each destination database
Rule sets for the capture process and/or synchronous capture and the propagations
Each shared object prepared for instantiation
A database link to the destination database for propagation
The destination database includes:
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.