The latest release of Oracle's data replication tool, GoldenGate 12c, has many improvements. The release coincided with the Oracle Data Integrator 12c release [https://www.rittmanmead.com/blog/2013/10/oracle-data-integrator-12c-release-part-1/] - and I wasn't about to let my colleague Jérôme Françoisse [https://twitter.com/JeromeFr]