This illustration shows the details of the secondary database
ps2.example.com Oracle Streams configuration, including the following mechanisms:
One queue that is used by the capture process, the propagation, and the apply process.
A capture process that captures changes in the redo log and converts relevant changes into LCRs, which it enqueues. The capture process captures a change only if its tag is
One propagation that propagates captured changes to
One apply process that applies changes from
ps1.example.com. These changes have a tag of
'00'in the redo log.