Because Replication Agent for Oracle 15.1 is log-based, it must be installed on the same host on which the primary Oracle server is running to directly access the Oracle transaction log files.
Using any of the upgrade procedures described in this section, the new Replication Agent for Oracle 15.1 instances will have the same configuration as previously existing instances, including instance names, administrative user IDs and passwords, and administrative port numbers.
Replication Agent for Oracle 15.1 does not support downgrading Replication
Agent for Oracle 15.1 to an earlier log-based version (12.6 or 15.0).
This section includes the following topics:
Upgrading a log-based Replication Agent (version 12.6 or 15.0)
Migrating Replication Agent 15.1 when upgrading Oracle 9i to 10g
Upgrading a trigger-based Replication Agent 12.5 when the primary Oracle is version 9i or 10g
Downgrading a log-based Replication Agent 15.1 to a trigger-based Replication Agent 12.5
