Database trigger to insert duplicated rows on audit table

Question

Hi
It is possible to insert duplicate rows (at the moment database generate PK violation constraint for one specific table) within an audit table ?
Certain code like this is not working, always the whole transaction makes a rollback and audit table will be empty:
CREATE OR REPLACE TRIGGER USER.audit_TABLE_TRG
before INSERT ON USER.TABLE
REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
BEGIN
declare
V_conteo number(1) := 0;
duplicate_record EXCEPTION;
begin
select count(*)
into V_conteo
from USER.TABLE
where <PK conditions>
if V_conteo > 0 then
begin
INSERT INTO USER.AUDIT_TABLE
(<>)
VALUES
(<>);
raise duplicate_record;
exception
when duplicate_record then
INSERT INTO USER.AUDIT_TABLE
(<>)
VALUES
(<>);
raise_application_error(-20019,'Duplicated column1/column2:'||:NEW.column1||'/'||:NEW.column2);
when others then
dbms_output.put_line('Error ...'||sqlerrm);
end;
end if;
end;
END;
/

Answer 1

>
Exactly this is my problem , one only transaction (insert into audit table and try to insert into target table), the reason of this post is to know whether exists another way to insert all the intent duplicate records on target table into one audit table, you right ,maybe I can add one date column and modify the PK on audit table but my main problem still happens.
>
Can I ask you why you want to go trigger route for this if your intention is only to capture the duplicate records? Assuming that you are on at least on 10gR2, you can look at DML error table. If you go this route, there is no need for additional overhead of trigger, code failures, etc.
Oracle can automatically store the failed records in an error table which you could later on investigate and fix it or ignore it.
Simple example:
SQL> create table emp (empno number primary key, ename varchar2(10), sal number);
Table created.
SQL> insert into emp values(1010, 'Venkat', 100);
1 row created.
SQL> commit;
Commit complete.
Create error table to log the failed records
BEGIN
      DBMS_ERRLOG.create_error_log (dml_table_name => 'emp');
END;
Now let's insert a duplicate record
SQL> insert into emp values(1010, 'John', 200) ;
insert into emp values(1010, 'John', 200)
ERROR at line 1:
ORA-00001: unique constraint (VENKATB.SYS_C002813299) violated
Now use the log table to capture
SQL> insert into emp values(1010, 'John', 200) LOG ERRORS INTO err$_emp ('INSERT') REJECT LIMIT UNLIMITED;
0 rows created.
Now check the error log table and do whatever you want
SQL> r
  1* select ORA_ERR_MESG$, empno, ename, sal from err$_EMP
ORA_ERR_MESG$
EMPNO
ENAME
SAL
ORA-00001: unique constraint (VENKATB.SYS_C00
2813467) violated
1010
John
200
1 row selected.This will also capture when you do
INSERT INTO EMP SELECT * FROM EMP_STAGE LOG ERRORS INTO err$_emp ('INSERT') REJECT LIMIT UNLIMITED;
You can capture the whole record into the log table. All columns.
Regards
Edited : Code