Date format YYYY inserted as 0006 instead of 2006

Question

Hi,
I have a strange problem in 9i database. When I execute the following procedure from TOAD's procedure editor, it inserts the year as 0006, buth when I execute it from sqlplus it inserts correctly as 2006.
So the scenario wherein the proc inserts the year as 0006 happens only from our application(java-strut-based) and from TOAD's procedure editor.
Please let me know if you have any clue on why it is happening only when executed from some clients. The NLS_DATE_FORMAT is already set as DD-MON-YYYY and all other database session level parameters,etc are correctly set.
Procedure:
CREATE OR REPLACE PROCEDURE test_year_format (
IS
v_start_date DATE;
BEGIN
DELETE FROM my_year_tab;
--get the start date for the month
SELECT TO_DATE (TO_CHAR (01) || '/' || '01' || '/' || TO_CHAR (2006),
'mm/dd/yyyy'
INTO v_start_date
FROM DUAL;
--This table has only one field that is of date datatype. The to_date inserts the year as 0006
INSERT INTO my_year_tab
VALUES (TO_DATE (v_start_date, 'dd-mon-yyyy'));
COMMIT;
END test_year_format;
Thanks and regards,
Ambili

Answer 1

Hi,
I agree with both prior posts about using TO_DATE(DATE type)...
But, just for information, maybe TOAD is reading a "local environment variable date ormat" in this format 'DD/MM/YY' ...
e.g:
RPS@ORACLE10> select to_date('01/01/06','dd/mm/rrrr') from dual;
TO_DATE('0
01/01/2006
RPS@ORACLE10> select to_date('01/01/06','dd/mm/yyyy') from dual;
TO_DATE('0
01/01/0006
RPS@ORACLE10>Cheers