@AccessControl.authorizationCheck: #NOT_REQUIRED
@EndUserText.label: 'Energy of one park'
define view entity {{P}}I_PARK_POWER
  with parameters
    p_park : abap.char(4)
  as select from {{p}}turbine as turbine
    inner join   {{p}}prod    as prod on prod.turbine_id = turbine.turbine_id
{
  key turbine.turbine_id     as turbine_id,
      turbine.park_id        as park_id,
      max( prod.energy_kwh ) as total_kwh,
      count( * )             as day_count
}
where turbine.park_id = $parameters.p_park
group by turbine.turbine_id, turbine.park_id