More than two years ago I took an introductory class on the Oracle database management system. Oracle is used in my organization, but not nearly as much as SQL Server, which is where I had been spending almost all my time. My supervisor was an experienced Oracle DBA and handled such tasks as came up. However, she just left, to take a job in the private sector. I have inherited the role of Oracle DBA. She gave me a lot of information before she left, but there was only so much she could cover in the available time. So I have a lot to figure out on my own. Oracle is very different.
Oracle here at work runs on Linux (Red Hat and Suse). All the time I have spent working on Linux at home will now pay off. The Linux support team hers is small (three people), but very good. I am looking forward to working with them.