SAX, DTD problem for a NewBie

Hi Guys,

I have a bit of a issue,

I've mastered basic Java SAX - which works for XML documents, however I now a DTD document, I have no idea how to use a DTD in conjunction with a SAX parser,

I'll also have a database, as in I have to read an XML feed and store it inside a DB.

I suspect I will have to load the DTD first.. where should I save this.. in my DB? or Do I re-read the DTD everytime I refer to the XML feed/.

Does anyone have any good tutorials that I could follow, or show me example code?

Thanks for your time in advance,