Read Data from an application server

[Former Member]

Hi Friends,

I have the data in a Flat file format on the application Server and i need to read the data into an internal table. Similarly I need to do for a flat file on the presentation Server.

How should I proceed on this.

Thanks in Advance,

Srikanth.

[Former Member]

hi

try this code

declare itab as per the file (here say gt_data)

data : v_file type string.

v_file = filename.

open dataset v_file for input in text mode encoding default.

if sy-subrc <> 0.

message e000 with 'ERROR OPENING FILE'.

endif.

do.

read dataset v_file into gt_data.

if sy-subrc <> 0.

exit.

to read data from pc use <b>gui_upload</b>

call function 'GUI_UPLOAD'

exporting

filename = v_file

filetype = p_type

has_field_separator = 'X'

• HEADER_LENGTH = 0

• READ_BY_LINE = 'X'

• DAT_MODE = ' '

• CODEPAGE = ' '

• IGNORE_CERR = ABAP_TRUE

• REPLACEMENT = '#'

• CHECK_BOM = ' '

• IMPORTING

• FILELENGTH =

• HEADER =

tables

data_tab = gt_data

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

.

else.

append gt_data.

clear gt_data.

endif.

enddo.

close dataset v_file.

[Former Member]

For App Server:

OPEN DATASET p_file FOR INPUT

IN TEXT MODE

ENCODING DEFAULT.

READ DATASET p_file INTO w_filedata.

CLOSE DATASET l_file.

For Pres Server:

Use FM GUI_DOWNLOAD

[ferry_lianto]

Hi Shejal,

You can use ABAP command OPEN DATASET <dsn>, READ DATASET <dsn> INTO <f> and CLOSE DATASET <dsn> to read data from application server.

DATA: 
  dsn(20) TYPE C VALUE '/usr/test.dat', 
  rec(80) TYPE C. 

OPEN DATASET dsn FOR INPUT IN TEXT MODE ENCODING DEFAULT. 
IF sy-subrc <> 0. 
  EXIT. 
ENDIF. 

READ DATASET dsn INTO rec. 
WHILE sy-subrc <> 0. 
  WRITE / rec.   READ DATASET dsn INTO rec. 
ENDWHILE. 

CLOSE DATASET dsn.

For reading data from presentation server, you can use this FM <b>GUI_UPLOAD.</b>

Regards,

Ferry Lianto

[Former Member]

For reading from app server:

types: begin of t_FC,

strText(80),

end of t_FC.

data: FC type table of t_FC with header line.

data: r_FC type t_FC.

open dataset YourFileNameHere for input in text mode encoding default.

if sy-subrc <> 0.

message i000(zz) with 'File Open error.'.

exit.

endif.

do.

clear r_FC.

read dataset FN into r_FC.

if sy-subrc <> 0.

exit.

endif.

append r_FC to temp_FC.

enddo.

close dataset YourFileNameHere.

[Former Member]

Hii

this is for uploading data into apllicn server

OPEN DATASET <file name> FOR {OUTPUT/INPUT/APPENDING}

IN {TEXT/BINARY} MODE

chk this program..

<b>DATA: i_file like rlgrap-filename value '/usr/sap/tmp/file.txt'.

OPEN DATASET i_file FOR INPUT IN TEXT MODE.

IF sy-subrc NE 0.

MESSAGE e999(za) WITH 'Error opening file' i_file.

ENDIF.

DO.

• Reads each line of file individually

READ DATASET i_file INTO wa_datatab.

• Perform processing here

• .....

ENDDO.</b>

Downloading files to SAP(Application Server)

• Download internal table to Application server file(Unix)

<b>DATA: e_file like rlgrap-filename value '/usr/sap/tmp/file.txt'.

open dataset e_file for output in text mode.

lOOP AT it_datatab......

transfer it_datatab to e_file.

ENDLOOP.

close dataset e_file.</b>

Regards

Naresh

[Former Member]

For reading from presentation server, use the FM GUI_UPLOAD.

Sample usage:

CALL FUNCTION 'GUI_UPLOAD'

EXPORTING

filename = l_filename

filetype = 'ASC'

TABLES

data_tab = it_pcc_file

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.

REgards,

Ravi

[Former Member]

Thanks All.

I thing I got it.

Shejal.