Sorry for bothering you with such a stupid questions, but I need some advice from a real life Oracle DBAs. I am a MS SQL Server DBA for the last 5 years. Have over 10 years of IT experience. Now I want to get more into Oracle. I want to become an Oracle DBA. The thing is, we don't have an Oracle at my current job, so I have to prepare for this on my own, at home. For now, I am studying Oracle and taking certification exams. I realize, that without Oracle experience, it's going to be hard to find a job as an Oracle DBA. The questions are: should I even bother playing with Oracle on Windows platform, or in real life it's mostly UNIX ? Because it's unreal to have a commersial UNIX system to have at home (where do I get it ?), will Linux be enough ? What does Oracle DBA have to know about UNIX (Linux) ? Should I be like a UNIX administrator, or just to know enough about UNIX (Linux) to know my way around this OS ? Any other suggestions ?