How can I update a customized table from a text document?

Question

Hi,
I am one sample file. The file is an text document. From this .txt file how can I update a customized table in SAP.
How can I Update the fields in the Customized table.
Thanks & Regards,
NManohar.

Answer 1

use the Function module GUI_UPLOAD or WS_UPLOAD and give the path and the file name from where the data has to be uploaded. in table parameter give the iternal table
CALL FUNCTION 'GUI_UPLOAD'
  EXPORTING
    filename                      =
  FILETYPE                      = 'ASC'
  HAS_FIELD_SEPARATOR           = ' '
  HEADER_LENGTH                 = 0
  READ_BY_LINE                  = 'X'
  DAT_MODE                      = ' '
  CODEPAGE                      = ' '
  IGNORE_CERR                   = ABAP_TRUE
  REPLACEMENT                   = '#'
  CHECK_BOM                     = ' '
  VIRUS_SCAN_PROFILE            =
  NO_AUTH_CHECK                 = ' '
IMPORTING
  FILELENGTH                    =
  HEADER                        =
  tables
    data_tab                      =
EXCEPTIONS
  FILE_OPEN_ERROR               = 1
  FILE_READ_ERROR               = 2
  NO_BATCH                      = 3
  GUI_REFUSE_FILETRANSFER       = 4
  INVALID_TYPE                  = 5
  NO_AUTHORITY                  = 6
  UNKNOWN_ERROR                 = 7
  BAD_DATA_FORMAT               = 8
  HEADER_NOT_ALLOWED            = 9
  SEPARATOR_NOT_ALLOWED         = 10
  HEADER_TOO_LONG               = 11
  UNKNOWN_DP_ERROR              = 12
  ACCESS_DENIED                 = 13
  DP_OUT_OF_MEMORY              = 14
  DISK_FULL                     = 15
  DP_TIMEOUT                    = 16
  OTHERS                        = 17
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
and finally use insert command to update the database table with the data