-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello 1LT On 26 November 2002 at 09:54:57 -0500 (which was 14:54 where I live) 1LT John W. Holmes emanated these words of wisdom > You may want to check out using Nested Sets instead of a Parent-Child-ID > system. This is OK for some simple trees, however it does have some limitations. (1) Adding another tree / series of nodes into the middle if the set. (2) A child node that belongs to more than one parent. - -- Cheers, _______________________________________________ David | David Elliott | Software Engineer | _________________________| david@elliott.uk.com | PGP Key ID 0x650F4534 | | Mathematicians DO IT with sum. | -----BEGIN PGP SIGNATURE----- Version: 6.5.8ckt http://www.ipgpp.com/ iQA/AwUBPeOcYPmK8eZlD0U0EQJRVACfXZGjwwUlKOV1yEvtEf96D0MdNakAnAuF PBlwh2HSenDKSVvldLp8H3fb =QE8q -----END PGP SIGNATURE----- -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php