Re: Column Constraints C=?

From: Mahesh Vallampati <m0v5533_at_tam2000.tamu.edu>
Date: 1995/05/27
Message-ID: <3q7nvh$k74_at_news.tamu.edu>#1/1

In article <3q60re$sc0_at_news.cais.com>, Randy Dewoolfson <randyd_at_cais3.cais.com> wrote:
>When you query the data-dictionary to find the constraints on
>columns, some come back with a P indicating PRIMARY KEY Column,
>and some come back NULL indicating no constraint, and some
>come back with a C.
>What does the C stand for?
>Damned if I can find it...
>Thanks for any insight
>Randy

Hie
Here is some insight.
C stands for "Check Constraint on a Table". You can find it in the Oracle7 server administrator guide in Appendix B and page 28. Appendix B is the data dictionary reference.
In Physics C would stand for the speed of light :) Hope This helps.

Thanks
Mahesh Vallampati
PH : 409 846 3794 (H) | 409 862 1070 (O) e-mail address : vallampa_at_ee.tamu.edu

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// In the Beginning there was Codd .... Received on Sat May 27 1995 - 00:00:00 CEST