Hi, I'm trying to build a simple categories tree in MySQL.
Say I have the following table: CREATE TABLE test ( id int(10) unsigned NOT NULL auto_increment, parent int(10) unsigned NOT NULL default '0', name tinytext NOT NULL, PRIMARY KEY (id), KEY parent (parent) ) TYPE=MyISAM; +----+--------+-------------------+ | id | parent | name | +----+--------+-------------------+ | 1 | 0 | parent 1 | | 2 | 0 | parent 2 | | 3 | 0 | parent 3 | | 4 | 1 | sub 1 of parent 1 | | 5 | 1 | sub 2 of parent 1 | | 6 | 2 | sub 1 of parent 2 | +----+--------+-------------------+ I would like to get all the childs under their parent, like this: +----+--------+-------------------+ | id | parent | name | +----+--------+-------------------+ | 1 | 0 | parent 1 | | 4 | 1 | sub 1 of parent 1 | | 5 | 1 | sub 2 of parent 1 | | 2 | 0 | parent 2 | | 6 | 2 | sub 1 of parent 2 | | 3 | 0 | parent 3 | +----+--------+-------------------+ How can I get MySQL to sort it like that? I tried to use group/order by, but I cannot get it to sort it this way.. Any ideas? Thanks, Sagi --------------------------------------------------------------------- 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
