The UniVerse database is not a version of DB2 at all. It's been around for many years and started out life with the company Vmark. It's been bought a few times over its life, spending time with Ardent, Informix, and now IBM. It's a "Pick" based multi-valued field database, using UniVerse Basic as it's programming language, and complete with it's own query language, including SQL-style formats.