Much Ado About Nothing

This database design was inspired by a blog post called Reflections on NULLs in Response to “Much Ado About Nothing” by van Wijk which referred to Much Ado About Nothing.

Bibliography

Darwen, H. (2006) How To Handle Missing Information Without Using NULL, http://www.dcs.warwick.ac.uk/%7Ehugh/TTM/Missing-info-without-nulls.pdf, viewed 30 May 2012.

de Haan, L. & Koppelaars, T. (2007) Applied Mathematics for Database Professionals, Apress.

ISO/IEC (2002) Information technology — Z formal specification notation — Syntax, type system and semantics, ISO/IEC 13568.

Lightfoot, D. (2001) Formal Specification Using Z, Palgrave.