Demaestro - 9:48 pm on Apr 26, 2011 (gmt 0)
You will likely have to learn a server side scripting language to do this unless you want to do it in an Ajax solution. I can tell you though if you are dealing with 12,000 rows that Ajax may not be the way to go unless you can figure out how to 'page' the data from that feed. Same with if you need this to be index'ble content
If you want to go Ajax you should check out Spry datasets and regions. It is from Adobe and plays nice in Dreamweaver which is why I mention it.
look at datasets and regions
I think your best option tho is to write an import script that inserts/updates a database and then read the data in from that database using PHP/ASP/PYTHON or whatever server language makes sense to use.