Re: Generalised approach to storing address details

> Parent(x,y)

The above violates the implied intent of the Information Principle. It is implicitly encoding information that is not explicitly expressed by relations' tuples' attributes' values. It also violates POOD, according to Bob Badour. For more details, see earlier response to your "Because we know he won't read it of course." Received on Tue Dec 12 2006 - 12:27:01 CST