Re: Check existence of combination in an M.N relation
by rdeleonp@[EMAIL PROTECTED]
("=?UTF-8?Q?Rodrigo_E._De_Le=C3=B3n_Plicet?="
Feb 29, 2008 at 02:57 PM
On Fri, Feb 29, 2008 at 10:25 AM, Erik Cederstrand <erik@[EMAIL PROTECTED]
>
wrote:
> How would I go about this?
This smells like EAV.
Please read
http://joecelkothesqlapprentice.blogspot.com/2006/04/using-one-table-vs-many.html
and consider reevaluating the schema according to valid relational
design (tables, columns, check constraints, etc.).
In any case, good luck.
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