Comparison LDAP to cdb

Martin <[email protected]> Mon, 5 Jan 2004 21:15:04 -0500
Newsgroups gmane.comp.djb.cdb
Message-ID <[email protected]>
Hello.

Why do people choose to use LDAP over cdb ?    e.g. qmail.  I see there is a 
qmail-ldap   http://www.nrg4u.com/

Just curious.

Regards...Martin