Re: two nasty schemata, union types and surrogate keys

From: Bob Badour <>
Date: Wed, 23 Sep 2009 09:39:24 -0300
Message-ID: <4aba16f4$0$23784$>

Philipp Post wrote:

>>So in the end, we'd really like a total invertible function between the entities and their representations in the database. <

> This wish is quite understandable, but I do not see one for the
> situation you described.

To whom did you reply? Please do not remove the attributions. Received on Wed Sep 23 2009 - 14:39:24 CEST

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