Update only some records
I friend told me the solution:

update Z_VERTRAGSDATEN_HIST HIST
  set
    ( HIST.VERHI_BISDAT
    , HIST.VERHI_ENDE
    , HIST.VERHI_ZEITSTEMPEL
    )  =
    ( select
      UPDA.VERHI_BISDAT
      , UPDA.VERHI_ENDE
      , sysdate
     from
       Z_VERTRAGSDATEN_UPDATE UPDA
     where
       HIST.VERHI_VER_ID = UPDA.VERHI_VER_ID
     )
where 
  HIST.VERHI_VER_ID in 
  ( select 
      verhi_ver_id 
    from  
      Z_VERTRAGSDATEN_UPDATE
  )
;
commit;