Hiii capturing error when uploading file from sap to Server

Question

hiii
i am taking data from an internal table which is as follow
ITAB:
colA(35) type c
colB(35) type c
when doing opendataset
OPEN DATASET lv_directory FOR OUTPUT IN TEXT MODE ENCODING UTF-8.
spliting my itab by the delimiter "|"
i need file already exist i must not over overwrte the file i must throw an error but how do the open dataset for output will overwrite the file how do i prevent that.  how can i check that a file of that name exist.
do i try to open dataset for input first then if sy-subrc EQ 0 it meant that a filename already exist

Answer 1

Hello,
Do something like this:
DO.
  READ DATASET file INTO <hex_container>.
  IF sy-subrc = 0.
" File exists
  ELSE.
    OPEN DATASET....
  ENDIF.
ENDDO.
Regards.