I want to read about SQL and VB as programming languages, with tips about approaching various problems and something about the underying theory of the languages. I am not looking for descriptions of the environments in which we use these languages. I have aleady used both languages successfully, but am sure I can improve my coding style – apropos which, I am a good enough programmer to know that many of the style tips given in books about the environments are poor. I would prefer a website, something that I can browse when bored or consult when an actual programming problem arises.