This book touches on an area seldom explored: the mathematical
underpinnings of the relational database. The topic is important, but
far too often ignored. This is the first book to explain the underlying
math in a way that's accessible to database professionals. Just as
importantly, if not more so, this book goes beyond the abstract by
showing readers how to apply that math in ways that will make them more
productive in their jobs. The authors are widely recognized in the
database world, and there is a technical review and foreword by C.J.
Date, foremost world authority on relational theory. What's in this book
will "open the eyes" of most readers to the great power, elegance, and
simplicity inherent in relational database technology.