topic Re: Decrease sy-tabix value in Loop in Application Development and Automation Discussions

Decrease sy-tabix value in Loop

Former Member — Tue, 11 Jan 2011 07:26:51 GMT

Hi Experts,

I need to know that is it possible that we can decrease or change value of SY-TABIX.

EXAMPLE:

I am using a;

loop at itab. --> at this stage sy-tabix is 1.

for instance current value of sy-tabix is changed to 4 and now I want to make it 3.

in this case I want to read the 3 value in loop again.

So is it possible that I can change my SY-TABIX value from 4 to 3 and read that 3rd record in the loop?

endloop.

can anyone let me know.

thanks in advance.

Regards,

Yahya

Re: Decrease sy-tabix value in Loop

Former Member — Tue, 11 Jan 2011 07:34:26 GMT

this is not possible directly to change the values of system variables

but the other way is there

what you can do is to move the valuw of sy-tabix in a variable and then loop through the table to that value,

like:

lv_tabix like sy-tabix.

loop at itab into wa where sy-tabix = lv_tabix.

after loop statement.

lv-tabix = sy-tabix.

you code............

before enloop .

lv_tabix = sy-tabix - 1.

endloop.

I am not sure about the above code but you can try something like above.

Thanks

Lalit

Re: Decrease sy-tabix value in Loop

Former Member — Tue, 11 Jan 2011 07:43:05 GMT

I HAVE ALREADY TRIED THIS BUT PROBLEM STILL PERSISTS..

THANKS,

Re: Decrease sy-tabix value in Loop

SuhaSaha — Tue, 11 Jan 2011 07:48:43 GMT

Hello Yahya,

You can try it this way though:

DATA: LV_TABIX TYPE SY-TABIX.

LOOP AT ITAB INTO WA.

* Perform your calculations on LV_TABIX as per your logic & set the value of LV_TABIX
  READ TABLE ITAB INTO WA_TEMP INDEX  LV_TABIX.
  IF SY-SUBRC = 0.
* Write your logic here
  ENDIF.

ENDLOOP.

BR,

Suhas

Re: Decrease sy-tabix value in Loop

Former Member — Tue, 11 Jan 2011 09:26:03 GMT

Thanks everyone.

I came up with this solution.

 loop at it_ship3

index = index - 1.
      sy-tabix = index.

      read table it_ship3 INDEX index into wa_ship.
      append wa_ship to it_ship4.
endloop.

I have taken that current index value and read data from the table directly with respect to that index.

Regards,

Yahya

Re: Decrease sy-tabix value in Loop

Former Member — Tue, 11 Jan 2011 09:38:56 GMT

Hi Yahya,

There is no need of

"sy-tabix = index."

It can be removed.

Thanks,

Preyansh

Re: Decrease sy-tabix value in Loop

Former Member — Tue, 11 Jan 2011 09:51:27 GMT

Dear Preyansh,

I'm using that sy-tabix in other scenario that is not displayed in above code. And that's the only reason for using

"sy-tabix = index."

Still appreciate your input.

Regards,

Yahya