Relational databases really are tree structures. However, whereas a tree parent node has pointers to children or sibling nodes; in a relational database, the nodes "point up" to the parent node. The nodes might also maintain a field to identify sibling nodes.
-----Original Message----- From: Robert Vukovic [mailto:[EMAIL PROTECTED]] Sent: Monday, October 29, 2001 2:03 PM To: 'Php-DB' Subject: [PHP-DB] TREE in a database Is there an easy way to implement tree structure in a database. Something like file systems do for files. Hints, links, anything. -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
