> I'm currently developing a PHP/MySQL project, one aspect of which > involves displaying a default set from the database which picks out all > records for whichever individual is associated with the most recent > date. I know this is a very general description, but I don't think it's > necessary to burden list members with further detail, nor to pass on > details of my table structures. > > Suffice it to say that I successfully achieved my goal with MySQL from > the command line, but I'm not sure how to write this functionality into > my PHP code. > > In MySQL, the following sequence of commands works the magic: > > SELECT @most_recent:=MAX(date) > FROM presenters; > > SELECT @recent_presenter:=presenter > FROM presenters > WHERE date = @most_recent; > > SELECT p.date, p.theme, p.presenter, > c.itemNo, c.composer, c.composition, c.note > FROM presenters p, compositions c > WHERE p.date = c.date AND p.presenter = @recent_presenter > ORDER BY p.date DESC; > > So how do I transfer all this to PHP?
Pretty sure you can do all that with one query. Something like: SELECT p.date, p.theme, p.presenter, c.itemNo, c.composer, c.composition, c.note FROM presenters p, compositions c WHERE p.date = c.date ORDER BY p.date DESC LIMIT 1 Not sure, though, as I don't have time to test right now. ---John W. Holmes... PHP Architect - A monthly magazine for PHP Professionals. Get your copy today. http://www.phparch.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
