Over lunch last week with co-workers, we were discussing the Oracle buy out of Sun and how that would affect MySQL and what other options there would be. Several people had some experience with PostgreSQL (including myself), but then I brought up Apache Derby ... and no one had used it or event downloaded it, and only a few had even heard of it. I just checked their web site and the last update was in November 2008. When I last played around with it, it seemed to have all the major features of a real database and the advantage of being pure Java (I can't speak to performance).
How many people are using Derby and if not, why not?
