Re: how to select material with same old material number

SELECT DISTINCT   bismt

INTO     CORRESPONDING FIELDS OF TABLE itab

  FROM   mara

  WHERE  bismt = file01-bismt.

if sy-subrc = 0.

  loop at itab.

  write :    20 file01-bismt, 50 'Dup OLD Mat', itab-matnr.

endloop.

else.

  write :    20 file01-bismt.

endif.