From ganesh@gtfs-gulf.com Wed, 12 Dec 2001 00:43:59 -0800 From: Ganesh Raja Date: Wed, 12 Dec 2001 00:43:59 -0800 Subject: RE: update database trigger Message-ID: MIME-Version: 1.0 Content-Type: text/plain The Where Clause Gives the rows... create or replace trigger trg_on_T1 before update on T1 for each row begin if updating then update T2 set a=:new.a, b=:new.b, c=:new.c Where a=:old.a and b=:old.b and c=:old.c; end if; end trg_on_T1; HTH Best Regards, Ganesh R Tel : +971 (4) 397 3337 Ext 420 Fax : +971 (4) 397 6262 HP : +971 (50) 7456019 -----Original Message----- [mailto:Shrinivas.Tatireddy@med.ge.com] Sent: Wednesday, December 12, 2001 12:05 PM To: Multiple recipients of list ORACLE-L Hi lists, DB:Oracle 8i I need to write a db trigger on table T1. It has to update T2 when ever T1 is updated. (Both T1 and T2 tables have identical structure.) The following query is doing wrong update. can anybody tell me what is wrong in this code: create or replace trigger trg_on_T1 before update on T1 for each row begin if updating then update T2 set a=:new.a, b=:new.b, c=:new.c; -- how to add the where clause..? end if; end trg_on_T1; I dont know how to use where clause in this. b'coz all columns can be updated by users. Can anybody give any hints. Thnx in advance Srinivas -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Tatireddy, Shrinivas (MED, Keane) INET: Shrinivas.Tatireddy@med.ge.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@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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Ganesh Raja INET: ganesh@gtfs-gulf.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@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).