Re: Relational vs network vs hierarchic databases

> Perhaps you should try finding something that _can't_ be easily
> modelled in a relational model, instead.

How would one represent the following without redundancy or NULLs?

john like mary.
mary like john.
(john like mary) because (mary like john). bob hit mary on elbow.
john hit bob on shoulder.
(john hit bob on shoulder) because (bob hit mary on elbow) during lunch. Received on Mon Nov 08 2004 - 16:37:13 CST