PARAMETERS aKASSA like TCJ_DOCUMENTS-CAJO_NUMBER OBLIGATORY DEFAULT '0111'

data aKASSAmask(19).
concatenate '%' aKASSA '%' into aKASSAmask.

SELECT * from BKPF
  WHERE BUKRS = aBUKRS
  AND GJAHR = aGJAHR
  AND BELNR in  aBELNR
  AND BLDAT in aBLDAT
  AND BUDAT in aBUDAT
  AND AWKEY like aKASSAmask
  AND BLART in ('BK', 'BP', 'BR')
  ORDER BY BUDAT
  .