Re: Do Data Models Need to built on a Mathematical Concept?
Date: Sat, 03 May 2003 06:51:04 -0700
Message-ID: <b90hab$ee88r$1_at_ID-152540.news.dfncis.de>
Neo wrote:
>>You need to learn is that a graph is equivalent to a binary relation, >>and incidentally the relational model is very well suited for guess >>what: relations.
>
>
> The reason the relational model is INefficient with highly variable
> graphs is that the number of binary relationships can vary but the
> relational model self imposes an arbitrary limitation of requiring the
> same n in all tuples belonging to a relation (table).
In another message you added this other non-sense:
Neo wrote:
>>You need to learn is that a graph is equivalent to a binary relation, > > > A graph is not equivalent to a binary relation. > A graph is composed of binary relations. >
You are very confused. Ok, I can see how coming from your other usual trolling on comp.database.object you consider any two pair of objects connected by a pointer or 2 pointers for that matter as a "relation". That is how you can claim that a "graph is composed of binary relations " and that is of course, non-sense.
Do you have any background about graph theory or any mathematics at all in your background, or are you just wasting our time ?
Read my lips : any graph can be interpreted as a binary relation, and any binary relation can be interpreted as a graph.
If you can't get past this elementary point, I will kindly suggest that you should give up trolling on comp.database.theory. This is not a forum to spoonfeed elementary mathematics to the ignorant. Received on Sat May 03 2003 - 15:51:04 CEST