Update! This post has been adapted into Spanish with permission by Profesor Jose A. Senso at the University of Granada. After August’s local Code4Lib meetup and SAA meeting, I’ve begun to consider blogging more about technical subjects. The biggest reason I haven’t so far is the fear of not being comprehensive enough or being too wordy. But if you want comprehensive, I suggest getting O’Reilly books and/or Database Design for Mere Mortals.1 And I’ve accepted I’m going to be wordy...