Peter, Great idea, but would you care to share the impact of these triggers on performance? I think it's a good principle to follow, but have always found triggers a little unwieldy for most operations myself. I would have thought this to be the case here, but I'd like to hear your experiences on the subject.
Thanks awfully, Harry Lowes "My enthusiasm for both the job in hand and the welfare of my fellow man knows no bounds." Database Administrator and bon vivante, npower Northern Limited -----Original Message----- Sent: 21 June 2002 11:49 To: Multiple recipients of list ORACLE-L Interesting comments on replication - but something hit me between the eyes. Primary Keys should NEVER, EVER be permitted to be updated, whether you are using replication or not. Its a basic tenent of relational design. We have been using triggers to prevent this for years. peter edinburgh ********************************************************************* This e-mail message, and any files transmitted with it, are confidential and intended solely for the use of the addressee. If this message was not addressed to you, you have received it in error and any copying, distribution or other use of any part of it is strictly prohibited. Any views or opinions presented are solely those of the sender and do not necessarily represent those of the British Geological Survey. The security of e-mail communication cannot be guaranteed and the BGS accepts no liability for claims arising as a result of the use of this medium to transmit messages from or to the BGS. The BGS cannot accept any responsibility for viruses, so please scan all attachments. http://www.bgs.ac.uk ********************************************************************* -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Robson, Peter INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Lowes, Harry (NESL-IT) INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
