If you are looking for a real database (something with a bit more umph than MS Access) check out these two
I have used PostgreSQL in some of my projects and have found it to be very capable. I like the views, stored procedures, triggers and rules in particular.
EnterpriseDB is new to me but this article
Vonage’s Open Source Database Odyssey
Caught my attention. Turns out EnterpriseDB is based on PostgreSQL. You may have heard of MySQL and not heard of PostgreSQL. If so that is a shame. When I initially went looking for a database for Linux some years ago, there seemed to be two main contenders. MySQL and PostgreSQL. MySQL had (and still does have) more attention than PostgreSQL but two things in particular turned me away from it. At the time I started looking the license did not allow for free commercial use. Even more glaring (in my opinion) was the fact that it did not support views (SQL command / concept). I went with PostgreSQL as a result. As I understand it they have fixed some of that but I still find PostgreSQL a bit easier to work with. At any rate, check them out.
