Re: have been wondering for quite a while

Hi,

CONSTRAINT_TYPE

                     VARCHAR2(1)  
                                   
                                            Type of constraint definition:
                                            C (check constraint on a table)
                                            P (primary key)
                                            U (unique key)
                                            R (referential integrity)
                                            V (with check option on a view)
                                            O (with read only, on a view)  

oli

William_Dong_at_nylim.com 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
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: William Dong
> INET: William_Dong_at_nylim.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
> the message BODY, include a line containing: UNSUB ORACLE-L
> (or the name of mailing list you want to be removed from). You may
> also send the HELP command for other information (like subscribing).
>
>

-- 
Oliver Artelt
Oracle Certified DBA

cubeoffice GmbH & Co.KG # jordanstrasse 7 # 39112 magdeburg
telefon: +49 (0)391 6 11 28 10 # telefax: +49 (0)391 6 11 28 19
email: info@cubeoffice.de # web: http://www.cubeoffice.de
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Oliver Artelt
  INET: oli_at_md.transnet.de

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).