Re: Hierarchical data models

From: rpost <>
Date: Sat, 15 Aug 2009 16:46:39 +0000 (UTC)
Message-ID: <h66opf$2svb$>

Nilone wrote:

>I'm looking for any references, discussion or theory about
>hierarchical models for situations such as residential addresses,
>geopolitical subdivisions, corporate structures, military ranks, file
>systems, type systems, etc.

Do you mean something like this?

>I'm specifically interested in models that can recognize partial
>correlations between subtrees, e.g. most/all countries have cities,

What does that mean? Should the data model itself express such quantitative correlations, or only the query language?

Received on Sat Aug 15 2009 - 18:46:39 CEST

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