OM Item Price list find Query

SELECT qlh.name, qlh.description, qlh.version_no,qll.product_id, product_attr_val_disp,operand, list_line_no

,product_uom_code, start_date_active

  FROM qp_list_lines_v qll

      ,qp_secu_list_headers_v qlh

 WHERE qll.list_header_id   = qlh.list_header_id  

   AND qll.product_attribute_context = 'ITEM'

   AND EXISTS

              (SELECT '1'

                 FROM MTL_SYSTEM_ITEMS mtl

                WHERE     product_attr_value = mtl.inventory_item_id

                      AND mtl.organization_id =

                             (SELECT qp_util.get_item_validation_org

                                FROM DUAL)

                      AND product_attribute = 'PRICING_ATTRIBUTE1'

               UNION

               SELECT '1'

                 FROM DUAL

                WHERE product_attribute != 'PRICING_ATTRIBUTE1')

       AND qll.product_attr_val_disp = NVL(:P_ITEM_CODE, qll.product_attr_val_disp) 

---------------Item Code and Description wise

SELECT qsh.name Price_list,

       PRODUCT_ID,

       PRODUCT_ATTR_VAL_DISP ITEM_CODE,REPLACE(TRIM(msi.DESCRIPTION),Chr(9),'') ITEM_DESCRIPTION, 

       qsl.PRODUCT_UOM_CODE UOM,

       qsl.operand Price,

       qsl.start_date_active

  FROM qp_secu_list_headers_v qsh, qp_list_lines_v qsl

     ,mtl_system_items_b  msi

 WHERE     qsh.list_header_id = qsl.list_header_id

       AND msi.INVENTORY_ITEM_ID = qsl.PRODUCT_ID

       AND qsh.END_DATE_ACTIVE IS NULL

       AND qsl.END_DATE_ACTIVE IS NULL

       AND msi.organization_id= 122 ---Master Org

--       AND PRODUCT_ATTR_VAL_DISP= 'FGBK0053'

       AND INVENTORY_ITEM_STATUS_CODE ='Active'

       AND qsh.name <> 'Default price list'

       AND qsl.start_date_active > '01-MAY-1951'

 Order by 1