oracle 8.1.6 insert into ec_problems_log (problem_id, problem_date, gift_certificate_id, problem_details) values (ec_problem_id_sequence.nextval, sysdate, :gift_certificate_id, :prob_details) select i.item_id, i.product_id, u.offer_code from ec_items i, (select * from ec_user_session_offer_codes usoc where usoc.user_session_id = :user_session_id) u where i.product_id=u.product_id(+) and i.order_id=:order_id select nvl(base_shipping_cost,0) from ec_admin_settings select nvl(add_exp_base_shipping_cost,0) from ec_admin_settings select ec_tax(0,:order_shipping_cost,:order_id) from dual select ec_gift_certificate_balance(:user_id) from dual