Error in to_date

Question

Hi,
I am getting an error on the below query, in the "to_date" function part.
select *
  from rf_bankaccount_avg t
where t.month_year between
       to_char(to_date((SELECT ADD_MONTHS(LAST_DAY(SYSDATE), -7) + 1 AS FROM dual),'mm-yyyy')) and
       to_char(to_date((select last_day(sysdate - to_char(sysdate, 'DD')) from dual),'mm-yyyy'))
   and t.account_type = 1
   and t.addnl_factype_no = '0'
   and t.ret_factype = 'A'
   and t.company_bankcode = '';i am getting the error "ORA-01841: (full) year must be between -4713 and +9999, and not be 0"
Edited by: 872435 on Apr 2, 2012 2:25 AM

Answer 1

Hi,
You can see many mistakes more clearly if you format your code.
The part that is apparantly raising this error is:
to_char ( to_date ( ( SELECT  ADD_MONTHS ( LAST_DAY (SYSDATE)
                                        , -7
                          ) + 1     AS
                FROM    dual
            , 'mm-yyyy'
     ) There's a mistake around the keyword "AS". Either you meant to have a column alias after it, or you didn't mean to have the keyword "AS" at all.
You can see other mistakes, here, too. For example, you're calling TO_DATE on something that is already a DATE, and you're calling TO_CHAR with only 1 argument.
Whatever you're trying to do, this is a very awkward way to do it.
What are you trying to do?
Are you trying to see if t.month_year is in the 6 months ending with last month? (That is, when the query is run any time in April, 2012, do you want to find rows where t.month_year is between October, 2011 and March, 2012, inclusive?) Assuming t.month_year is a DATE, that's just
WHERE   t.month_year >= ADD_MONTHS (TRUNC (SYSDATE, 'MONTH'), -6)
AND     t.month_year <              TRUNC (SYSDATE, 'MONTH')This assumes that t.month_year is a DATE. If it's some other data type, the solution is a little more complicated. That's to be expected; storing date information in any data type other than DATE makes things more complicated.