How to bind local variables in complex query in PL/SQL

Question

Hi
I have long complex query with local varibales; when I run in Dynamic SQL I get an error. Not sure which is the easiest way to bind local variables.
L_QUERY := q'[select m.segment1 col1,
      '1' col2,
      '13' col3,
      l.operand col4,
      0 col5,
       'Y' col8,
      'N' col9,
      'N' col10,
   decode(h.name,'09_UKOR_*','EOS Credit','10_UKOR_*','TopUp','11_UKOR_*','Main') col18
from qp_list_headers_v h,
      qp_list_lines_v l,
      mtl_system_items m
where h.name in ('09_UKOR_*','10_UKOR_*','11_UKOR_*')
and h.list_header_id = l.list_header_id
and m.inventory_item_id = l.product_attr_value
and m.organization_id  = 84
UNION all
SELECT qs.PRODUCT_ATTR_VALUE col1,
       hca.account_number col2,
       decode (su.site_use_code,'BILL_TO','21','SHIP_TO','18') col3,
       0 col4,
       qs.operand col5,
       null col6,
       null col7,
       'N' col8,
       'Y' col9,
       'N' col10,     
--Local variables
      (case when (trunc(nvl(qq.start_date_active,sysdate)) between l_cur_year_from  and l_cur_year_to) and  
                  ( trunc(nvl(qq.end_date_active,l_cur_year_to)) >= trunc(l_cur_year_to) )  then    'TopUp'
            when (trunc(qq.start_date_active) between l_next_year_from  and l_next_year_to) and  
                  ( trunc(nvl(qq.end_date_active,l_next_year_to)) >= l_next_year_to)  then   'Main'              
            when (trunc(qq.start_date_active) between l_last_year_from  and l_last_year_to) and  
                  ( trunc(nvl(qq.end_date_active,l_last_year_to)) >= l_last_year_to )  then  'EOS Return'
       end )col18,
--Local variables
       (case   when (trunc(qq.start_date_active) between l_next_year_from  and l_next_year_to) and  
                  ( trunc(nvl(qq.end_date_active,l_next_year_to)) >= l_cur_year_to )  then   'N'
          else
                'Y'  end ) col21
   FROM qp.qp_list_headers_b qlhb,
        qp.qp_list_headers_tl qlht,
        qp.qp_qualifiers qq,
        qp_modifier_summary_v qs,
        hz_cust_site_uses_all su,
        hz_cust_acct_sites_all  sa,
        hz_cust_accounts hca
WHERE 1=1
      and qlhb.LIST_TYPE_CODE       = 'DLT'
      and nvl(qlhb.active_flag,'Y') = 'Y'
      and qlhb.list_header_id       = qlht.list_header_id
      AND qq.list_header_id         = qlhb.list_header_id
      and qq.list_type_code         = qlhb.LIST_TYPE_CODE
      and qq.QUALIFIER_CONTEXT      = 'CUSTOMER'
      and qs.list_header_id         = qlhb.list_header_id
      and qs.LIST_LINE_TYPE_CODE    = 'DIS'
      and su.site_use_id            = qq.qualifier_attr_value --1064
      AND  su.cust_acct_site_id     = sa.cust_acct_site_id
      AND  sa.cust_account_id       = hca.cust_account_id ]';
--call Dynamic SQL function
l_cursor := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE(l_cursor, p_QUERY , DBMS_SQL.NATIVE);
l_rows := DBMS_SQL.EXECUTE(l_cursor);
Any help will be much appreciated.
iI guess I should use DBMS_SQL.BIND_VARIABLE to bind all variables seperately so not to mess with query

Answer 1

1) What is the error you get?
2) If you use bind variables inside a query, you should prefix them with colons, so use :l_cur_year_from etc.
3) Why are you using dbms_sql instead of native dynamic sql and/or ref-cursors?
Toon