Since I am going to TA an intro to databases class soon I might very well use it. Why not try to integrate it into a wikibook so that other people can contribute and extend it?
Direct link to PDF download in case of downtime: <a href="http://www.filedropper.com/aprimeronsql1sted" rel="nofollow">http://www.filedropper.com/aprimeronsql1sted</a>