I'm not sure any of the databases would work for your situation. It would probably be best if you created your database from scratch so it would best fit your needs.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.