Re: two nasty schemata, union types and surrogate keys

From: Roy Hann <specially_at_processed.almost.meat>
Date: Fri, 25 Sep 2009 05:04:00 -0500
Message-ID: <9dOdnTPGjIMNCCHXnZ2dnUVZ8rWdnZ2d_at_pipex.net>

> What does the closed world assumption have to do with violating 5NF?

You can't have a violation of 5NF without it.

-- 
Roy

Received on Fri Sep 25 2009 - 12:04:00 CEST

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