READ DATASET separated by tab

* local data declaration
      DATA:
      lo_cxfo TYPE REF TO cx_sy_file_open ,
      lo_cxcp TYPE REF TO cx_sy_codepage_converter_init ,
      lo_cxcc TYPE REF TO cx_sy_conversion_codepage ,
      lo_cxfa TYPE REF TO cx_sy_file_authority ,
      lo_cxpn TYPE REF TO cx_sy_pipes_not_supported,
      lo_cxmf TYPE REF TO cx_sy_too_many_files,
      lo_cxroo TYPE REF TO cx_root,
      lv_row TYPE string,
      w_tab_field TYPE c VALUE cl_abap_char_utilities=>cr_lf
      .
      REFRESH gt_figl_joined.

      TRY.
          OPEN DATASET w_ruta FOR INPUT IN TEXT MODE ENCODING DEFAULT.
          DO.
            READ DATASET w_ruta INTO lv_row.
            IF NOT lv_row IS INITIAL.
              SPLIT lv_row AT w_tab_field
              INTO
                wa_figl_joined-h_mandt
                wa_figl_joined-h_bukrs
                wa_figl_joined-h_belnr
                wa_figl_joined-h_gjahr
                wa_figl_joined-l_buzei
                wa_figl_joined-h_blart
                wa_figl_joined-h_bldat
                wa_figl_joined-h_budat
                wa_figl_joined-h_cpudt
                wa_figl_joined-h_xblnr
                wa_figl_joined-h_bktxt
                wa_figl_joined-h_waers
                wa_figl_joined-h_kursf
                wa_figl_joined-h_xref1_hd
                wa_figl_joined-h_xref2_hd
                wa_figl_joined-l_bschl
                wa_figl_joined-l_shkzg
                wa_figl_joined-l_gsber
                wa_figl_joined-l_dmbtr
                wa_figl_joined-l_wrbtr
                wa_figl_joined-l_valut
                wa_figl_joined-l_zuonr
                wa_figl_joined-l_sgtxt
                wa_figl_joined-l_kostl
                wa_figl_joined-l_prctr
                wa_figl_joined-l_hkont
                wa_figl_joined-l_xref1
                wa_figl_joined-l_xref2
                wa_figl_joined-l_xref3
                wa_figl_joined-l_criteria.

              IF sy-subrc = 0.
                APPEND wa_figl_joined TO gt_figl_joined.
              ELSE.
                EXIT.
              ENDIF.
            ELSE.
              EXIT.
            ENDIF.
          ENDDO.
          CLOSE DATASET w_ruta.
        CATCH cx_sy_file_open INTO lo_cxfo.
          WRITE: /, 'Error at open file'.
        CATCH cx_sy_codepage_converter_init INTO lo_cxcp.
          WRITE: /, 'Error Code Page Converter initialization'.
        CATCH cx_sy_conversion_codepage INTO lo_cxcc.
          WRITE: /, 'Error Code Page Concersion'.
        CATCH cx_sy_file_authority INTO lo_cxfa.
          WRITE: /, 'Error no authorization to process file'.
        CATCH cx_sy_pipes_not_supported INTO lo_cxpn.
          WRITE: /, 'Error at open file'(005).
        CATCH cx_sy_too_many_files INTO lo_cxmf.
          WRITE: /, 'Error al tratar de procesar muchos archivos'.
        CATCH cx_root INTO lo_cxroo.
          WRITE: /, 'Error genérico'.
      ENDTRY.
    ENDIF.