SQL is a great tool when used properly, and this article gives you a simple, practical example to get you started.
By Joe Pluta
Welcome to the wonderful world of practical SQL for RPG programmers. Over the coming months, I hope to bring you a whole host of practical techniques that you can use to become more productive using SQL in your daily programming efforts. I know it may seem odd to some to hear me giving advice on SQL, since over the years I've been very steadfast in my opinion that SQL should not replace native I/O for business logic. But really, there is no conflict here; I have always believed in the best tool for the job, and there are times when SQL is definitely the best tool.
In this 2009 update of one of MC Press Online's most popular ever articles, learn how you too can have amazing superpowers.
By Greg Hintermeister
When I was young, I used to fantasize about having superpowers. Even after I had learned the laws of physics, I still yearned for the abilities to fly, to become invisible, and to travel through time. After becoming a systems management professional, I had to accept reality and put away my dreams of wielding superpowers.
By Joe Pluta 
By Greg Hintermeister