Re: Binary Relational Modeling call

Ivan wrote:

> wiki:
> "A relation is a data structure which consists of a heading and an unordered set of tuples which share the same type."
>
> wiki:
> "In mathematics, a binary relation on a set A is a collection of ordered pairs of elements of A. In other words, it is a subset of the Cartesian product A2 = A × A. More generally, a binary relation between two sets A and B is a subset of A × B."
>
> says nothing about difference between "relation" and "relationships".
> binary relations? exactly what i have in mind: every binary relation can be implemented as table of pairs (2 field tuples) of references to sets' elements.

What does the ever-so-omniscient wiki way about n-ary relations? Received on Sat Sep 17 2011 - 08:15:02 CEST