On Fri, Jan 30, 2009 at 1:41 PM, Matthew West <dr.matthew.west@xxxxxxxxx> wrote:
> Dear Mitch
>
>> - Any (relational) database schema describes a set of relations/an
>> ontology and most are extremely multi-ary.
>
> [MW] Yes but these are mostly denormalisations to overcome the costs of
> table joins. (01)
Are you saying that most of the table schemas you see in rdb's have
large numbers of fields because they were purposefully re-enginneered
that way (from collections of binary relations) in order to make
access (and joins) more efficient? (02)
--
Mitch Harris (03)
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