Upload 2 files and compare its contents

Hi guys,
I want to upload 2 files in SAP and compare its contents.
How am i going to do that?
Please provide sample code... Thanks a lot!
rgds,
Mark

Hi Mark,
I expected to use this code, once u can try this code.
OPEN DATASET lv_filename FOR OUTPUT IN TEXT MODE ENCODING DEFAULT.
IF sy-subrc = 0.
    LOOP AT gi_output1 INTO gwa_output1.
      CLEAR lv_string.
      CONCATENATE gwa_output1-matnr
                  gwa_output1-maktx
                  gwa_output1-werks
                  gwa_output1-bmeng
                  gwa_output1-posnr
                  gwa_output1-idnrk
                  gwa_output1-ojtxp
                  gwa_output1-mngko
                  gwa_output1-mmein
                  gwa_output1-flag
                  INTO lv_string
                  SEPARATED BY cl_abap_char_utilities=>horizontal_tab.
      TRANSFER lv_string TO lv_filename.
      IF sy-subrc <> 0.
        MESSAGE e006(zpdm).
      ENDIF.              "if sy-subrc <> 0.
    ENDLOOP.
     OPEN DATASET lv_filename FOR appending IN TEXT MODE ENCODING DEFAULT.
IF gi_output2[] is not initial.
    LOOP AT gi_output2 INTO gwa_output2.
      CLEAR lv_string.
      CONCATENATE gwa_output2-matnr
                  gwa_output2-ojtxb
                  gwa_output2-werks
                  gwa_output2-bmeng
                  gwa_output2-posnr
                  gwa_output2-idnrk
                  gwa_output2-ojtxp
                  gwa_output2-mngko
                  gwa_output2-mmein
                  gwa_output2-flag
            INTO lv_string
       SEPARATED BY cl_abap_char_utilities=>horizontal_tab.
      TRANSFER lv_string TO lv_filename.
      IF sy-subrc <> 0.
        MESSAGE e007(zpdm). " WITH text-006.
      ENDIF.           "if sy-subrc <> 0.
    ENDLOOP.
ENDIF.

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