[Zope] Sybase: How generate id keys? (surrogate keys)

Hi, How do people generate id keys (surrogate primary keys) in Sybase+Zope? There are some recommended ways of doing it in Sybase with stored procedures but I can't run stored procedures in Sybase. I am looking at heavy-traffic strategies. So I need something slightly better than a simple increment table for the keys. Any recommendations? Thanks in advance. Hung Jung ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com