SELECT 
code class,
title, 
text, 
value, 
sort_order

FROM 
<@PREFIX>order_total 

where  
order_id = <@ORDERS_ID@> and code != 'total'

union
SELECT 
'ot_total' class,
'Order total' title,
text,  
value, 
2 sort_order

FROM 
<@PREFIX>order_total 

where 
order_id = <@ORDERS_ID@> and code = 'total'