With mysql 4.1 you could union and then subSelect maybe? I'm not super-familiar with sub selects, so this code won't likely run.. But then, you're runn 4.0x so it won't run anyway. :) select city_id, count(city_id) as num from ((select city_id from members) UNION (select city_id from pictures) UNION (select city_id from reports)) order by num On Friday 25 February 2005 07:08 am, Merlin wrote: > Hi there, > > I am trying to do a tricky task with PHP and MySQl 4.0.x > > There are 3 content tables where each of them contains a city_id > and there is a 4th table which holds the city_id and the acording city_name > > Now I would like to find out the most used city names. > > For example: > > members pictures reports > 3 4 3 > 2 9 8 > 9 8 8 > > So the most used city_ids are > 8 > 3 > 9 > > To find this out would be a chelenging task, but to merge them with the > city name is even more difficult > > I am working on this quite a while now and cant find a way. Maybe someone > of you guys could give me a smart push. > > Thank you for any help, > > Merlin -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
