I\'ve been trying to find the most efficient/effective way capture change notifications in a single Oracle 11g R2 instance and deliver those events to an Apache Kafka queue,
I think one approach might be to utilize Oracle GoldenGate for Big Data (researching this myself), obviosuly its most likely a costly solution ($)?
https://blogs.oracle.com/dataintegration/entry/introducing_oracle_goldengate_for_big
Let me know if you got anywhere with this, good luck ...