Re: Just one more anecdote

From: Marshall Spight <marshall.spight_at_gmail.com>
Date: 4 Aug 2005 14:13:38 -0700
Message-ID: <1123190018.942466.89570_at_g44g2000cwa.googlegroups.com>


Hugo Kornelis wrote:
> An ORM diagram maps to
> tables, primary key, unique, check and foreign key constraints,

... which tables handle just fine...

> plus a
> bunch of constraints that can't be directly implemented in any RDBMS
> that I know of.

Like what? What can't a CHECK constraint do?

> I'd say that stating the needs as table definitions is incomplete.

Can any of the other software in the system take advantage of these constraints? If so, why can't the dbms do so also? If not, what value are they?

Marshall Received on Thu Aug 04 2005 - 23:13:38 CEST

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