Offtopic - naughty naughty.

I haven't done SQL authentication in apache, but just did a bunch of work looking at diff't auth schemes. The answer is simple, you will need to find a module that will do it. Just becuase the standard set doesn't include one, doesn't mean it doesn't exist. Also check source forge or anywhere else you would look for good software.

Or you could write your own module in perl (we're back on topic). OReilly has a book you might want to look at. I haven't needed to go that far, so I can't comment on the book's quality, but it is an OReilly book.
TGI says moo