It might be worth grabbing a copy of something like "SQL for dummies" or "SQL in 24 hours" because your first hurdle is learning how to use SQL in the first place(
http://it-ebooks.info/book/1498/ is free and I think, legit).
I basically learnt from a book like that before I went to college, 20 years down the line I'm STILL having to google this stuff from time to time
