I understand that you only have one table. The query I gave you joins the same table against itself, and aliases it to a, b, and c. The only question was whether the depth is always the same. Steve Meyers
> Hi > > I have one table and the depth is not always the same. > > Anyway thanks :) > > > If the depth of the tree is always the same, it is actually > > fairly easy. For instance, if there are three levels: > > > > SELECT c.group_id FROM table a, table b, table c WHERE a.group_id > > = 12345 AND b.group_id = a.parent_group_id AND c.group_id = > > b.parent_group_id > > > > If you don't know the depth, you'll have to do a recursive search > > (keep on querying for the next parent until you run out of parents). > > > > Steve Meyers --------------------------------------------------------------------- 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
