Rel News

Rel, an implementation of Date & Darwen's "Tutorial D" database language, now supports some of the changes found in their new book, "Database Explorations - Essays on The Third Manifesto and Related Topics".

In particular, aggregate operator invocations now allow you to specify expressions in addition to attributes, and short synonyms have been provided for various keywords.

For more information, or to download Rel, see http://dbappbuilder.sourceforge.net/Rel.html