Re: have been wondering for quite a while

From: Stephane Faroult <sfaroult_at_oriole.com>
Date: Mon, 02 Jul 2001 13:39:58 -0700
Message-ID: <F001.0033F755.20010702135127@fatcity.com>

William Dong wrote:
>
> DBAs:
>
> On the user_constraints view, you can find the constraint_type has five distinct
> values:
> C, O, P, R, U, and V.
> C=check,
> P=primary key,
> R=foreign key,
> U=unique key.
> What about O and V?
>
> If I assume O=optional(null/not null), I really can not guess V.
>
> Anyone can help?, Thanks in advance.
>
> William
>
> --

Out of memory, I think it is 'CHECK OPTION' for views. Check $ORACLE_HOME/rdbms/admin/sql.bsq for cdef$.

Regards,

Stephane Faroult
Oriole Corporation
Voice: +44 (0) 7050-696-269
Fax: +44 (0) 7050-696-449
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Author: Stephane Faroult
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Received on Mon Jul 02 2001 - 15:39:58 CDT