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Re: Should an application ever be allowed to change a schema?

From: Timothy J. Bruce <uniblab_at_hotmail.com>
Date: 17 Apr 2004 17:12:22 -0700
Message-ID: <34519632.0404171612.3b3a8509@posting.google.com>


Karen:

> Critical constraints are included in the database that
> are common to all users of the data. The middleware applications may
> impose their own local constraints which are not critical to the
> integrity of the data.

*ALL* constraints are critical to and for integrity, and therefore belong in the DBMS, as declaritive constraints when possible. I am aware that many products offered today may not offer the level of control and logic I insist apon, thus making the scenario you described above more common than most suspect.

Just because I should doesn't mean I can, Timothy J. Bruce
uniblab_at_hotmail.com
</RANT> Received on Sat Apr 17 2004 - 19:12:22 CDT

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