Ok so I just withdrew from a 9 month database theory and practice module (before it started) due to a heavy work load. I already work with SQL day to day, but my SQL knowledge is really very limited in comparison to my programming skills.
The module was VERY heavy on theory and really quite dry. What I really need is a book that I can learn from and use as a reference while I work. I was wondering if the good folks at sitepoint can recommend me a title?