| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Mailing Lists -> Oracle-L -> RE: have been wondering for quite a while
>From the manual:
CONSTRAINT_TYPE
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)
-----Original Message-----
Sent: Monday, July 02, 2001 1:47 PM
To: Multiple recipients of list ORACLE-L
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.
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). The information contained in this email is intended for the personal and confidential use of the addressee only. It may also be privileged information. If you are not the intended recipient then you are hereby notified that you have received this document in error and that any review, distribution or copying of this document is strictly prohibited. If you have received this communication in error, please notify Celltech Group immediately on: +44 (0)1753 534655, or email 'is_at_celltech.co.uk' Celltech Group plc 216 Bath Road, Slough, SL1 4EN, Berkshire, UK Registered Office as above. Registered in England No. 2159282 -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Maser, Donna (SEA) INET: Donna.Maser_at_sea.celltechgroup.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).Received on Mon Jul 02 2001 - 15:18:30 CDT
 |
 |