Randy, > I think I've firmed my "theoritical" understanding of relationships enough > to be dangerous. Now for the logical part....how do you actually define a > relationship in mysql? For instance... >
http://www.mysql.com/doc/en/SEC447.html > table movies > columns (movie id(pk) , movie title , year filmed) > > table directors > columns (director id(pk), movie id(fk), total movies) > Using these definitions the total_movies column seems redundant to me. select count(*) from movies,directors where movies.movie_id=directors.movie_id would yeald the total movies under said director_id. Ric --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
