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."
>
> Sorry, "Parent(x,y)" itself does not violate IP or POOD. I was assuming
> you will be encoding it as follows which does.
>
> Table1
> Parent Child
> x y

Sorry, another correction, POOD is not violated until "Parent(x,y)" is implemented similar to:

T_Parent
Person1 Person2
x y Received on Tue Dec 12 2006 - 20:09:21 CET