Writing an external audit file

Awhile back I answered a question from somebody I believe on Dizwell on how to write a custom trigger that would write a record to an external datafile with every insert. I stumbled across the script here and thought I would post it.

CREATE OR REPLACE TRIGGER audtest_Bi
 BEFORE
  INSERT
 ON audtest
REFERENCING NEW AS NEW OLD AS OLD
 FOR EACH ROW
DECLARE

JOBOUT NUMBER;

BEGIN

dbms_job.submit( JOBOUT, 'BEGIN AUDWRITE('||:NEW.PK||'); END;',SYSDATE );
:NEW.JOBNUM := JOBOUT;

END;
/

CREATE OR REPLACE PROCEDURE AUDWRITE(I_PK NUMBER) AS

L_OUTPUT        UTL_FILE.FILE_TYPE;

BEGIN
    L_OUTPUT := UTL_FILE.FOPEN( 'AUDTEST_DIR', 'AUDTEST_AUDIT.CSV', 'A' );

FOR LINE IN (SELECT * FROM AUDTEST WHERE PK=I_PK) LOOP
    UTL_FILE.PUT( L_OUTPUT, LINE.PK||','||LINE.SOMEDATA);
    UTL_FILE.NEW_LINE( L_OUTPUT );
    END LOOP;

    UTL_FILE.FCLOSE( L_OUTPUT );

END;
/


INSERT INTO AUDTEST (PK,SOMEDATA) VALUES (AUDTEST_SEQ.NEXTVAL,DBMS_RANDOM.string('A',ROUND(DBMS_RANDOM.VALUE(1,45))));
INSERT INTO AUDTEST (PK,SOMEDATA) VALUES (AUDTEST_SEQ.NEXTVAL,DBMS_RANDOM.string('A',ROUND(DBMS_RANDOM.VALUE(1,45))));
INSERT INTO AUDTEST (PK,SOMEDATA) VALUES (AUDTEST_SEQ.NEXTVAL,DBMS_RANDOM.string('A',ROUND(DBMS_RANDOM.VALUE(1,45))));
INSERT INTO AUDTEST (PK,SOMEDATA) VALUES (AUDTEST_SEQ.NEXTVAL,DBMS_RANDOM.string('A',ROUND(DBMS_RANDOM.VALUE(1,45))));
INSERT INTO AUDTEST (PK,SOMEDATA) VALUES (AUDTEST_SEQ.NEXTVAL,DBMS_RANDOM.string('A',ROUND(DBMS_RANDOM.VALUE(1,45))));


--SHOULD BE 5 JOBS
SELECT * FROM USER_JOBS;

--SHOULD BE 5 ROWS WITH JOBNUM FILLED IN
SELECT * FROM AUDTEST;


--WON'T BE A FILE IN C:\TEMP
COMMIT;
--NOW THERE WILL BE A FILE IN C:\TEMP

Some work and a lot of testing will need to be done if this goes into production. But might have some use to somebody.