update ec_admin_settings set base_shipping_cost = :base_shipping_cost, default_shipping_per_item = :default_shipping_per_item, weight_shipping_cost = :weight_shipping_cost, add_exp_base_shipping_cost = :add_exp_base_shipping_cost, add_exp_amount_per_item = :add_exp_amount_per_item, add_exp_amount_by_weight = :add_exp_amount_by_weight