Here is one of my recent experiences running Oracle Goldegange 12.2.0.1 against Oracle 11.2.0.4 database. I was able to add Goldengate Extract Integrated process successfully without any issues. But when I tried starting the extract process, extract failed with the following error: 2016-09-04 23:49:30 ERROR OGG-02912 Patch 17030189 is required on your Oracle mining database […]