topic Do loop doesn't seem to be looping. in Application Development and Automation Discussions

Do loop doesn't seem to be looping.

Former Member — Fri, 19 Oct 2007 12:07:13 GMT

Hi.

I incorporated a DO loop in a subroutine, but it doesn't seem to be working.

**********************************************************************

FORM VALIDATE_FILEPATH.

DO 10 TIMES.

SELECT AREA_A_FILE_MAND INTO MAND_CHECK FROM ZSCSDM_OF

WHERE OBJECT_ID = 'STUD' AND FILE_NUMBER = SY-INDEX.

ENDSELECT.

MESSAGE E002(ZMSGGARY) WITH SY-INDEX.

ENDDO.

ENDFORM.

**********************************************************************

The message will always return 1 (i.e. SY-INDEX is always = 1)

Thanks

Re: Do loop doesn't seem to be looping.

Former Member — Fri, 19 Oct 2007 12:09:22 GMT

Hi,

MESSAGE E002(ZMSGGARY) WITH SY-INDEX.

this is stopping the process of do loop

put in a condition atleast..

DO 10 TIMES.

SELECT AREA_A_FILE_MAND INTO MAND_CHECK FROM ZSCSDM_OF

WHERE OBJECT_ID = 'STUD' AND FILE_NUMBER = SY-INDEX.

so when ever it is failed this will give the message

if sy-subrc ne 0.

MESSAGE E002(ZMSGGARY) WITH SY-INDEX.

endif.

ENDSELECT.

ENDDO.

regards,

Venkatesh

Re: Do loop doesn't seem to be looping.

Former Member — Fri, 19 Oct 2007 12:11:17 GMT

HI,

you are making the message for each loop.

for the first time it will go insdide...

then it will give error message

then it will come out of the do loop.

if you want the message every time and to continue the loop

you can make it success message ...

regards,

Venkatesh

Re: Do loop doesn't seem to be looping.

Former Member — Fri, 19 Oct 2007 12:13:41 GMT

Hi,

do like this

SELECT AREA_A_FILE_MAND INTO table MAND_CHECK FROM ZSCSDM_OF
WHERE OBJECT_ID = 'STUD'.

loop at mand_check.
 if sy-index > 10.
  exit.
 else.
  MESSAGE E002(ZMSGGARY) WITH SY-INDEX.
 endif.
endloop.

Reward for helpful answers

Satish

Re: Do loop doesn't seem to be looping.

Former Member — Fri, 19 Oct 2007 12:15:16 GMT

Hi,

change message type to S

MESSAGE S002(ZMSGGARY) WITH SY-INDEX.

Re: Do loop doesn't seem to be looping.

Former Member — Fri, 19 Oct 2007 14:59:02 GMT

for looping through itab, we should use sy-tabix instead of sy-index. if i use sy-index, somehow it returns 0 instead of 1, 2....

loop at mand_check.

if sy-index > 10. ==> NO.

IF SY-TABIX > 10 ==> YES.