I don't want to make this longer than necessary, but if you have a table favourite_drink
person_id, drink containing 'ando' 'coke' 'ando' 'beer' and you "delete from favourite_drink where person_id='ando' and drink='coke';" and "insert into favourite_drink (person_id,drink) values ('ando','wine');" I'm pretty confident 'wine' will not come before 'beer', even if 'wine' is what I really prefer. In this sense, I think LDAP was designed to be almost as dumb as most applications (and application developers) but not dumber. So, values with the very same importance go into sets, and values with special importance go into specific attributes, possibly with SINGLE-VALUE constraint if appropriate, as I explained in my previous message. As a general rule, don't ask software to do what can be better done by yourself, and viceversa :) p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.r.l. via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it --------------------------------------- Office: +39 02 23998309 Mobile: +39 333 4963172 Email: [EMAIL PROTECTED] ---------------------------------------