topic Re: OPEN, READ, CLOSE, TRANSFER DATASET in Application Development and Automation Discussions

OPEN, READ, CLOSE, TRANSFER DATASET

rciano — Sun, 10 Mar 2019 06:13:51 GMT

Hi SAP ABAP Gurus,

Please help. Below code is not working.

Error is "<WA>" cannot be converted to the row type of "_TABLE". The reverse is also not possible.

TYPES: BEGIN OF _struct,
_line TYPE string,
END OF _struct.

DATA _table TYPE STANDARD TABLE OF _struct.

FIELD-SYMBOLS <wa> TYPE x.

OPEN DATASET file1 FOR INPUT IN TEXT MODE ENCODING DEFAULT.
IF sy-subrc EQ 0.
DO.
READ DATASET file1 INTO <wa>.
IF sy-subrc EQ 0.
APPEND <wa> TO _table.
ELSE.
EXIT.
ENDIF.
ENDDO.
CLEAR _table.
CLOSE DATASET file1.
* DELETE DATASET file1.
ENDIF.

OPEN DATASET file2 FOR OUTPUT IN TEXT MODE ENCODING DEFAULT.
IF sy-subrc EQ 0.
LOOP AT _table INTO <wa>.
TRANSFER <wa> TO file2.
ENDLOOP.
CLOSE DATASET file2.
ENDIF.

Re: OPEN, READ, CLOSE, TRANSFER DATASET

muttepawar-2009 — Sun, 10 Mar 2019 07:45:23 GMT

Open dataset file1 for input in text mode encoding default.

if sy-subrc ne 0. write:/ 'Unable to open file:', file1.

else.

do.

read datasset file1 into <wa>.

if sy-subrc ne o.

exit.

else.

append <wa> to _table.

endif.

close dataset file1.

enddo.

endif.

Open dataset file2 for output in text mode encoding default.

if sy-subrc ne 0.

write:/ 'Unable to open file:', file2.

else.

loop at _table.

transfer <wa> to file2.

endloop.

close dataset file2.

endif.

Re: OPEN, READ, CLOSE, TRANSFER DATASET

matt — Sun, 10 Mar 2019 08:37:19 GMT

Use the "code" button of the editor when posting code.

Re: OPEN, READ, CLOSE, TRANSFER DATASET

matt — Sun, 10 Mar 2019 08:39:59 GMT

<wa> is type X, the line type of _table is _struct, which is a isn't type X. Hence the error. Maybe you should check your course notes or abap help about types in ABAP and conversion of types.

Re: OPEN, READ, CLOSE, TRANSFER DATASET

Sandra_Rossi — Sun, 10 Mar 2019 13:12:12 GMT

It's better to explain what is wrong and why, rather than just correcting without explaining anything

Re: OPEN, READ, CLOSE, TRANSFER DATASET

Sandra_Rossi — Sun, 10 Mar 2019 13:13:56 GMT

"code is not working" means nothing, give facts: code is not compiling, there is the following syntax error. Please tell us also the line where the syntax error occurs, rather than letting us reviewing the whole code manually.