@AccessControl.authorizationCheck: #NOT_REQUIRED
@EndUserText.label: 'Order totals'
define view entity {{P}}I_ORDER_TOTAL
  as select from {{p}}ord as head
    inner join   {{p}}itm as item on item.order_id = head.order_id
{
  key head.order_id                                                   as order_id,
      head.customer                                                   as customer,
      count( * )                                                      as item_count,
      sum( cast( item.quantity as abap.dec( 10, 0 ) ) * item.price )  as total_amount
}
group by
  head.order_id,
  head.customer