select t.PSPCODE as 'PSP-Element', t.TASKNAME as 'Arbeitspaket-Name', CEILING(t.ESTEFFPH) as 'Plan-Stunden' 
  from CCTASK t
 where t.PROJECT=? and t.TASKTYPE='JAPAP'
UNION 
select 'SUMME','ZPI2017',SUM(CEILING(t.ESTEFFPH)) as PLANSTUNDEN
  from CCTASK t
  where t.PROJECT=? and t.TASKTYPE='JAPAP'