Using Oracle OLE DB provider (with ADO) generates error: ORA-01843 while using date

Question

Were using OLE DB provider in order to connect to our Oracle 9i database. When executing the following query in a SQL Plus window I will get the correct results:
SELECT gum_seu_syo_id, seu_userid, seu_first_name, seu_last_name
From group_user_mapping, security_users
Where gum_seu_syo_id = seu_syo_id
and gum_term_date > '8/19/2002'
and gum_seg_syo_id = 11
However if will execute the same query from the our application (VB using ADO) I will get the following error:
ORA-01843: Not a valid month
Checking with our Oracle DBA we made sure my registry is correct and includes the correct format under HEKY_LOCAL_MACHINE\SOFTWARE\ORACLE\ORACLE_HOME,
where the key is NLS_DATE_FORMAT (of type REG_EXPAND_SZ) with the value:
MM/DD/YYYY HH:MI:SS AM
I also run the following query in a SQL Plus window:
select sysdate from dual;
and got the following result:
08/19/2002 10:27:20 AM
which shows that the data format is correct.
Trying to switch between the month and day in the query (put '19/8/2002') worked from the application but generated ORA-01843: Not a valid month in the SQL Plus window.
Any ideas?

Answer 1

try using
to_char function
for eg.
select * from emp where to_char(hiredate,'dd/mm/yy') > '20/3/83'.
Jagriti