Most people (myself included) only pay attention to the job market within about 20 miles of where they live (or want to live). The only people than who would be likely to have a good answer for that question are Oracle professionals that live within twenty miles or so from you. Maybe one of them will stumble on your post.
While you're waiting for that to happen, your best bet for determining the job market in your area is to look at job listings. A Google search for "online job listings australia" gave me a number of hits. Search in those for your region and see what's there, what employers are asking for, and what they're offering.