we have set nls_date_format to dd-mm-yyyy in parameter file .
but all the funtions which have some hard coded date value in the format of
dd-mm-yyyy
are giving "not a valid month error"
example is
create or replace function test_bkj(t_date date)
return varchar2
is
begin
if (t_date < '12-12-2001')
then
t_retval := 'Less Than';
else
t_retval := 'Greater Than';
end if;
return t_retval;
end;
SQL> select test_bkj('12-12-2001') from dual;
select test_bkj('12-12-2001') from dual
*
ERROR at line 1:
ORA-01843: not a valid month
ORA-06512: at "AVLMKT.TEST_BKJ", line 6
ORA-06512: at line 1
when we change the date format in funtion to 'dd/MON/yyyy' keeping the
nls_date_format to 'dd-mm-yyyy'
we are getting wrong results from function .
create or replace function test_bkj(t_date date)
return varchar2
is
begin
if (t_date < '12-DEC-2001')
then
t_retval := 'Less Than';
else
t_retval := 'Greater Than';
end if;
return t_retval;
end;
SQL> select test_bkj('31-12-2001') from dual;
TEST_BKJ('31/12/2001')
----------------------------------------------------------------------------
----
Less Than
while the results should have been "Greater than" . ............(pl see the
if-else condition )
its giving "Less Than" for any date comparison.
Pl help .
Thanks in advance
Brajesh Jaiswal
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