http://www.amazon.com/exec/obidos/tg/detail/-/1558605762/qid=1033128099/sr=8 -1/ref=sr_8_1/104-0156092-0439928?v=glance&n=507846
(beware the wrap) Chapters 28 and 29 are on SQL trees. Beware this is a pretty deep subject and you need to be firmly grounded in SQL before reading it. That being said, read chapter 28 and then 29. If you do this, at the end of chapter 29 he gives you a (relatively) simply way to accomplish what you want to do. I've used it now for menu trees and user trees and it's working great. HTH, =C= * * Cal Evans * The Virtual CIO * http://www.calevans.com * -----Original Message----- From: Leif K-Brooks [mailto:[EMAIL PROTECTED]] Sent: Thursday, September 26, 2002 10:05 PM To: [EMAIL PROTECTED] Subject: [PHP-DB] Categorized list? I'm trying to create a system to store virtual "objects". Each object will be in a category, and the categories may be in other categories. The categorie list might look something like: Food Candy Healthy Food Vegeterian food Organic food Gross food I'm thinking of a datbase structure for the categorys something like: id (int, auto_inc, primary) name (text) insideof(int, id of other catrgory which this one is inside of) The problem is, I need to generate an indented list such as I showed before. I know how to do this with a lot of colors (selecting what each category contains, etc.), but is there a more effieient way? I use mysql. Thanks for any ideas. -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
