SQL0180N The syntax of the string representation of a datetime value is incorrect. SQLSTATE=22007

Hello everyone.
  I'm a newbie here...so go easy on me.  I have the following code in a .cmd file ( sdv.cmd ).  I run it from a command prompt like this c:\sdv.cmd >h:\projects\sdv.txt.  It runs fine and it does what i want it to except that I want it to prompt for a date so I don't have to hard code the SQL date to a differnet date each day.  

How do a set a arg for the date and have it prompt the user to enter a date.

We are using a DB2 database.  ( sorry, that's all I know )


/***************************************************************************************
* THIS WILL EXTRACT DATA                                                                                                                                  *
*                                                                                                                                                                          *
***************************************************************************************/

'Dbmucmd mydatabase "select',
      'c.cust_rt_nbr,',
        'a.ord_appv_deliv_dt,',
        'a.ord_doc_nbr,',
        'd.hhc_descp_txt,',
        'd.selling_code,',
        'b.ord_orig_item_qty,',
        'b.ord_curr_item_qty,',
        'b.ship_recv_item_qty,',
        'b.ord_item_um_code,',
        'd.sdv_amt,',
        'e.unit_per_case_qty,',
        'e.cdy_per_case_qty,',
        'a.acctg_dest_loc_nm',
 'from oms.ord_ship_hdr a,',
        'oms.ord_ship_ln b,',
        'oms.ord_cust_rt c,',
        'slp.product_code_attr d,',
        'iim.sku e',
 'where a.ord_cancl_flg=''0'' and',
        'a.ord_delte_flg=''0'' and',
        'a.purge_flg=''0'' and',
        'c.rt_type=''01'' and',
        'a.ord_appv_deliv_dt=''2004-08-30'' and', <<<<<<<<<<<<<<<<< (This date )
        'a.ord_doc_nbr=b.ord_doc_nbr and',
        'a.ord_doc_nbr=c.ord_doc_nbr and',
        'b.prod_nbr=e.prod_nbr and',
        'b.case_seq_nbr=e.case_seq_nbr and',
        'b.prod_nbr=d.prod_code and',
        'd.PROD_C_ATTR_END_DT>=a.ORD_APPV_DELIV_DT ',
        ' AND A.ORD_TYPE_CODE<>''66'' ',
        ' AND A.ORD_TYPE_CODE<>''65'' ',
   'order by c.cust_rt_nbr,',
           'a.ord_appv_deliv_dt,',
           'a.ord_doc_nbr,',
           'd.selling_code"'

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Thanks a million