I haven't actually attempted such a thing, but there are tools available map complex objects to relations; see e.g. the Apache DB project at http://db.apache.org/ojb/ --Andy >>> [log in to unmask] 2004-03-19 09:44:21 >>> Rutgers is in the process of building a database to underlie a MODS metadata entry utility for its Fedora-based digital repository. So we are trying to translate the MODS schema into database tables. Some is pretty straight forward, but other elements--name, date, etc.--are interesting challenges. Has anyone created a database for MODS input? Ruth Ruth A. Bogan Head, Database and Catalog Portal Management Section Rutgers, the State University of New Jersey 47 Davidson Road, Busch Campus Piscataway, NJ 08854-5603 Ph.: 732-445-5906 Fax: 732-445-5888 Email: [log in to unmask]