I think doing this with a custom SQL query is probably the best bet. I could help you with writhing the code in a premier support ticket. Doing it with the supplied server behaviors would over complicate the process.
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.