Handling dataset dumps

[Former Member]

Hello all,

How can we handle dumps in open dataset statements.

For eg: open dataset pa_upld for input in text mode.

if it's successful, then only open the file. Or else it will dump.

Now how can we handle this without going to dump if file does not exist.

Regards

[Former Member]

write the simple query

open dataset p_file for output in text mode .

if sy-subrc ne 0.

message E000(zsd) with 'File not found'.

endif.

[Former Member]

Hi,

If the file is not there..Then it will not dump..It will set the sy-subrc to greater than zero..

Check this ex..

OPEN DATASET '/tmp/test.txt' FOR INPUT IN TEXT MODE.

* Check the return code..
IF sy-subrc <> 0.
  MESSAGE E208(00) WITH 'File not found.'.
ENDIF.
 

Thanks,

Naren

[Former Member]

Hi Kesi ,

Check the value of SY-SUBRC after the open dataset statement and it the value is not equal to 0 , then raise an error message , thus stopping the execution of the program.

Regards

Arun

[Former Member]

Hello,

I was going through this code gallery, in which it states if file is present it will set subrc to 0 else it will dump. Now i am bit confused with that when you say subrc will set to 8.

Now i will checking for subrc only after the open dataset statement. If it goes to dump as soon as with open dataset statement, how can i check for subrc ( which will be next statemnt).

Link to code gallery---https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/reading%2bfile%2bcontents

Regards

[Former Member]

HI Kesi ,

I dont think the program dumps is the file is not present, it just sets SY-SUBRC as 8 , so please check it in your system.

I tested it in my system and it set SY-SUBRC as 8.

Do respond with the result which you get.

Regards

Arun

[Former Member]

Hello Arun,

Thanks for the reply. Now that was my understanding to and that was my answer in the interview which i faced recently. ut the person was rrelunctant to accept that and said that system will go to dump. He said that we need to handle that for which i did not had any answer.

When i checked in the code gallery (in the link i provided in same post), there was this statement...

• if it's successful, then only open the file. Or else it will dump.

if sy-subrc = 0.

.....

.....

Now i realy want to get a clearcut answer for this.

Regards

[Former Member]

Hi Kesi ,

The best answer you get when you try it out and see what happens in real .

So why dont you try it in your system and see what happens.

Here is the code which i tried out

OPEN DATASET '/tmp/test.txt' FOR INPUT IN TEXT MODE.

* Check the return code..
IF sy-subrc <> 0.
break-point.
*  MESSAGE E208(00) WITH 'File not found.'.
ENDIF.

It is not necessary thet every thing said during interview is correct in all situations , it is just based on the perception and observations of the person involved in it.

Regards

Arun

[Former Member]

Hi,

If you satisfy with the answers, please reward & close the thread.

Regards,

donepudi

[Former Member]

using sy-subrc..

after the fopen dataset statement .

if sy-subrc = 4.

error message.

endif .

Reward points if it is usefull ..

Girish

[Former Member]

Thanks all