The Unnormalized Relational Data Model: For Office Form Processor Design (Softcover Reprint of the Original 1st 1989)Paperback - Softcover Reprint of the Original 1st 1989, 8 December 2011
This monograph provides a rigorous foundation for handling business and
engineering data based on unnormalized relations. The model discussed
here is the nested table data model. The book does not assume a reader's
familiarity with database systems.