How to load text data into internal table

Question

I have a text file to load txt data into internal table. So how to read text data with validation and to load all text data into the internal table?
Say this is the text file:
IO_NAME, IO_TYPE, IO_SHTXT, IO_LONGTEXT, DATATYPE, DATA LENGTH
ZIO_TEST1, CHA,      IO TEST1,      IO TEST 1,        CHAR,         20
ZIO_TEST2, CHA,      IO TEST2,      IO TEST 2,        CHAR,         20
Regards,
Mau

Answer 1

Hi,
U can use GUI_UPLOAD for this...
Declare an internal table like
data: begin of itab occurs 0,
string(1200),
end of itab.
check the sample code:
cange as you need
DATA: DATEI_PC TYPE STRING VALUE 'C:\MATNR.TXT'.
DATA: BEGIN OF ITAB occurs 0,
TXT(1024),
END OF ITAB.
CALL METHOD CL_GUI_FRONTEND_SERVICES=>GUI_UPLOAD
EXPORTING
FILENAME = DATEI_PC
FILETYPE = 'ASC'
CHANGING
DATA_TAB = ITAB[]
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
NOT_SUPPORTED_BY_GUI = 17
ERROR_NO_GUI = 18
OTHERS = 19.
IF SY-SUBRC NE 0. WRITE: / 'Error in Uploading'. STOP. ENDIF.
WRITE: / 'UPLOAD:'.
LOOP AT ITAB. WRITE: / ITAB-TXT. ENDLOOP.