[EMAIL PROTECTED] wrote: > > Hi , > > We want to create a database trigger to maintain the log history of > transaction tables (Not the Oracle Archive Log). > > Our requirement is to create a common Oracle database trigger. Only the > table name will be different in these > triggers. The column names can be taken from "all_tab_columns" view. > > When a row is updated in the table, this trigger should fire and the old > and new values of updated fields must be > saved in the update_log table. It's structure would be : > > create table update_log > ( > log_date date, > table_name varchar2(20), > column_name varchar2(20), > old_value varchar2(20), > new_value varchar2(20) > ); > > We have tried out this trigger, but in vain.. > ----------------------------------------------------------- > CREATE OR REPLACE TRIGGER trg_invoice > after update on sales.invoice > referencing old as old new as new > for each row > > declare > cursor cur_log > is > select column_name from all_tab_columns > where table_name='USER_PROG_ROLES'; > > v_column varchar2(50); > > begin > > for rec_log in cur_log loop > v_column := rec_log.column_name; > if ':new.'||v_column <> ':old.'||v_column then -- -- how to get old > and new value without > -- -- knowing the actual column name. > insert into update_log > (log_date, table_name, column_name, old_value, new_value) > values > (sysdate, 'Sales.invoice', v_column, :old.v_column, :new.v_column); > end if; > end loop; > > end; > ----------------------------------------------------------- > > Expecting a reply soon... > > Thanks in advance, > > Deepa >
Deepa, Change the requirement. I think that the best you can do is a generator for as many triggers as you have tables you want to monitor. The best I know to do in terms of generic triggers is catching statement and bind variables, and even this involves having a peek at places where you are not supposed to. Or use LogMiner, of which I know very little. -- Regards, Stephane Faroult Oriole Software -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Stephane Faroult INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- 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).
