Re: Using meta-data for foreign key?

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От David Wilson
Тема Re: Using meta-data for foreign key?
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Msg-id e7f9235d0804171105r29bfdd30x17755782be5c46a8@mail.gmail.com
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Ответ на Re: Using meta-data for foreign key?  ("Roberts, Jon" <Jon.Roberts@asurion.com>)
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On Thu, Apr 17, 2008 at 1:55 PM, Roberts, Jon <Jon.Roberts@asurion.com> wrote:
>  Using the term "metadata" is misleading in your example.  Metadata is
>  data about data and in your example, you just have data.  It is fine to
>  join tables in an RDBMS.
>

I believe you missed the OP's actual goal. He's not interested in
linking printing options to specific rows of the foo table; he wants
each column of the foo table to have a single entry in the printing
options table; that is, he wants a foreign key reference to the system
catalog giving the columns of entity foo. He does, in fact, appear to
be interested in a foreign key reference to a table's metadata.

--
- David T. Wilson
david.t.wilson@gmail.com

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