Have a talk with your developers.
Implicit conversions of any kind should not be
allowed in production code. I think you know why, now.
Jared
On Saturday 05 January 2002 04:35, Oracle DBA wrote:
> 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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--
Author: Jared Still
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