However - it's not a freeware and that automatically makes it very unpopular for open source OS vendors and very unlikely a choice of standard webadmin and that makes it hard to test. Even if I was able to obtain some license to install oracle on any of my servers, I wouldn't do it as it eats too much resources. On other hand if oracle granted some license to wikimedia, we could set up a project on wikimedia labs for this purpose.
Doesnt oracle offer a free "express" eddition?
-bawolff