Learning oracle question

I took one of these oracle classes a while back. It covered Oracle Developer, Designer, SQL, touched on VB and Unix. Obviously it was a brief overview of the area of oracle. I was misguided to believe it would help me get a career in the field. Once I was done and out the door they basically told me to piss off.

So now that I have this slight background on oracle, what would help me getting a job?
If I get certified would this help?
I live in michigan and can't relocate at the moment since I am pursuing an MBA here.
What should I do to progress in this field?

Its either something like that or maybe go back and get an MCSE.

Any tips and ideas are appreciated.

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