select p.TASKNAME as JAPBEREICH, fc.TASKNAME, ROUND(fc.PLANKOST0112*1.065) as PLAN_KOSTEN_INCL_GK, ROUND(fc.ISTKOST0106*1.065) as IST_KOSTEN_INCL_GK, ROUND(fc.FCKOST0112*1.065,0) as FC_KOSTEN_INCL_GK

  from ZPI2017FC20170730 fc

    left outer join ZPI2017FC20170730 p on p.TASKID=fc.PARENTID

  where fc.TASKTYPE='JAPVORHABEN'

UNION

select 'SUMME' as JAPBEREICH, 'Z-PI 2017' as TASKNAME, ROUND(SUM(fc.PLANKOST0112)*1.065,0) as PLAN_KOSTEN_INCL_GK, ROUND(SUM(fc.ISTKOST0106)*1.065,0) as IST_KOSTEN_INCL_GK, ROUND(SUM(fc.FCKOST0112)*1.065,0) as FC_KOSTEN_INCL_GK

  from ZPI2017FC20170730 fc

    left outer join ZPI2017FC20170730 p on p.TASKID=fc.PARENTID

 where fc.TASKTYPE='JAPVORHABEN'