Yes you can. If your Oracle knowledge/skills is less than what you think, do not worry just go on trying for more junior level positions. See this,

http://www.jobserve.com/results.aspx...=1&dt=0&ps=200

Make sure that you take an online oracle test before you go for an interview as this might give you some sort of idea as what you might be asked.

http://orafaq.com/supquiz.htm


Good luck and god bless.................