Felix Ulrich-Oltean writes:

I'm trying to use a DA (ZPsycopgDA) to work with a RDBMS. Is there an API for these things? Install "DocFinder"

<http://www.dieter.handshake.de/pyprojects/zope> and see what useful methods you find. Usually, you would not use a DA directly but use it via Z SQL Methods. There are documents about DA's on Zope.org (usually, how to write your own one for a new backend database). Dieter