Simple date conversion!!

Question

Hello,
I have the following query in a procedure:
select gcc.segment1||'.'||gcc.segment2||'.'||gcc.segment3||'.'||gcc.segment4 ACCT_FLEXFIELD,
       po.vendor_name,
       ab.batch_name,
       a.invoice_num INVOICE_NUMBER,
       a.invoice_date INVOICE_DATE,
       a.gl_date POST_DATE,
       b.amount DISTRIBUTION_AMOUNT,
       b.accrual_posted_flag POST,
       null,--PO_NUMBER,
       'Expense' ACCOUNT_USE,
       po.segment1 VENDOR_NO
from ap_invoices_all a,
     ap_invoice_distributions_all b,
      gl_code_combinations gcc,
      po_vendors po,
      ap_batches_all ab
where a.invoice_id = b.invoice_id
and   b.dist_code_combination_id = gcc.code_combination_id
and   a.vendor_id = po.vendor_id
and   a.batch_id = ab.batch_id
and   b.accounting_date >= to_char(to_date(substr(start_date,1,10),'YYYY-MM-DD'),'DD-MON-YYYY')
and   b.accounting_date <= to_char(to_date(substr(end_date,1,10),'YYYY-MM-DD'),'DD-MON-YYYY')
and   gcc.segment2 >=cost_center_from
and   gcc.segment2 <=cost_center_to
and   gcc.segment3 >=acct_from
and   gcc.segment3 <=acct_to
order by ACCT_FLEXFIELD,po.vendor_name asc;The start_date and the end_date when they are passed in come in the following format:
2009/03/01 00:00:00
The b.accounting_date is a 'date' field.
I am getting the following error:
ORA-01861: literal does not match format string
I can't seem to think what is wrong with the date formatting above which is causing the issue.
Does any one see what the issue is?
Thanks,
Chiru

Answer 1

Megastar_Chiru wrote:
and   b.accounting_date >= TO_DATE(to_char(to_date(substr(start_date,1,10),'YYYY-MM-DD'),'DD-MON-YYYY') )
and   b.accounting_date <= TO_DATE(to_char(to_date(substr(end_date,1,10),'YYYY-MM-DD'),'DD-MON-YYYY') )
There is not need to convert the converted date to char and then convert it back to date
And if you do not have a time part in the date in won't get convert to time. Time will always be 00:00:00
SQL> select to_date(substr('2009-01-01',1,10),'YYYY-MM-DD')
  2  , to_date(substr('2009-02-02',1,10),'YYYY-MM-DD')
  3  from dual
  4  /
TO_DATE(S TO_DATE(S
01-JAN-09 02-FEB-09