Decrease sy-tabix value in Loop

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

Hi
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

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SY-TABIX value of a loop in other loop in other loop.

Hello Gurus,
I have a problem i want to modify some columns in final internal table and it is possible by using Transporting and Index but when i see SY-TABIX value it is not really giving particular loop iteration value. Because my present loop is in another loop and it is in another loop. Please gurus help me out
or
How to Insert particular filed columns and how to use where clause in insert..
Thanks.

Hi !
Here are things you could do:
1. You can use nested loops with the WHERE statement on the inner loop. But this can be slow.
     This will look like this
               loop at i_tab1 into wa1
               loop at i_tab2 into wa2 where cond1 = wa1-cond1....
                 (   move wa2-field3 to wa1-field3.....)
                    modify i_tab1.
               endloop.
               endloop.
2. You can use the parallel cursor technique as suggested above.
     This technique speeds up processing of data significantly. Here it is:
     data lv_tabix type i.
          sort i_tab1 by field1 ascending.
          sort i_tab2 by field1 ascending.
          loop at i_tab1 into wa1
          read table i_tab2 transporting no fields with key cond1 = wa1-cond1 binary search.
          lv_tabix = sy-tabix.
               loop at i_tab2 into wa2 from lv_tabix.
                    if wa2-cond1 <> wa1-cond1.
                               exit.
                     endif.
               ( move wa2-field3 to wa1-field3.....)
                    modify i_tab1.
                endloop.
          endloop.
Please let me know if you want more explanation

Sy-tabix value has changed...

Hi Gurus,
I am using a code like dis...this is not the actual code m using instad m sendin u a sample program so that u can understand the problem
There is a selecvtion for Customer.
sort itab by kunnr.
loop at itab.
on change of itab-kunnr.
wkunnr = itab-kunnr.
read table zitab with key kunnr = itab-kunnr.
endon.
if itab-kunnr = wkunnr.
wdmbtr = wdmbtr + itab-dmbtr.
endif.
at end of kunnr.
ftab-kunnr = wkunnr.
ftab-dmbtr = wdmbtr.
append ftab.
endat.
endloop.
Now my problem is that AT END OF Kunnr is working fine for the first customer or say for single customer but when there are multiple customers AT END OF kunnr is triggring for each entry.......
In debug MOdei can see that as soon as read table syntax is used the tabix value is changed....
So Can anyone suggest what is the solution....
Regards,
Raman

This is the Declaration
DATA: BEGIN OF ITAB OCCURS 0,
                  KUNNR      LIKE BSID-KUNNR,
                  BELNR      LIKE BSID-BELNR,
                  BUKRS      LIKE BSID-BUKRS,
                  GJAHR      LIKE BSID-GJAHR,
                  BUZEI      LIKE BSID-BUZEI,
                  SHKZG      LIKE BSID-SHKZG,
                  VALUT      LIKE BSID-ZFBDT,
                  SGTXT(70) TYPE C,
                  ZFBDT      LIKE BSID-ZFBDT,
                  ZBD1T       TYPE BSID-ZBD1T,
       ZBD2T       TYPE BSID-ZBD2T,
       ZBD3T       TYPE BSID-ZBD3T,
       REBZG       TYPE BSID-REBZG,
       NETDT       TYPE BSID-BUDAT,
                  ZUONR      LIKE BSID-ZUONR,
                   BLART      LIKE BSID-BLART,
                  DMBTR      LIKE BSID-DMBTR,
                  SPART       TYPE VBRK-SPART,
                  DAY    TYPE RFPOSX-VERZN,
                  FLAG TYPE C,
                  CITY        TYPE KNA1-ORT01,
       NAME1       TYPE LFA1-NAME1,
                 CR_DR1(4) TYPE C,
                  PSWSL      LIKE BSID-PSWSL,
                  ZTERM      LIKE BSID-ZTERM,
                  VBELN      LIKE BSID-VBELN,
                  UMSKZ      LIKE BSID-UMSKZ,
                  KLIMK      LIKE KNKK-KLIMK,
                  VTEXT      LIKE TVZBT-VTEXT,
                  ADV        LIKE BSID-DMBTR,
                  REBZT       TYPE BSID-REBZT,
                  XBLNR      LIKE BSID-XBLNR,
                  VTEXT1(70) TYPE C,
                   FKLIMK    LIKE KNKK-KLIMK,
                  ABC(4)     TYPE C,
                AGRO(4)        TYPE C,
                  BIO(4)        TYPE C,
                  SKFOR      LIKE KNKK-SKFOR,
                  SSOBL      LIKE KNKK-SSOBL,
                  CTLPC      LIKE KNKK-CTLPC,
                  OEIKW      LIKE S066-OEIKW,
                  OLIKW      LIKE S067-OLIKW,
                  OFAKW      LIKE S067-OFAKW,
                 NAME1      LIKE LFA1-NAME1,
                  BUDAT      LIKE BKPF-BUDAT,
                  D_DMBTR    LIKE BSID-DMBTR,
                  S_DMBTR    LIKE BSID-DMBTR,
                  VORGN      LIKE BSEG-VORGN,
                  WERKS      LIKE BSEG-WERKS,
                  NAMESO     LIKE KNA1-NAME1,
                  NAMEAM     LIKE KNA1-NAME1,
                  NAMERM     LIKE KNA1-NAME1,
                   NAMEDR     LIKE KNA1-NAME1,
   END OF ITAB.

Outputting sy-tabix value in serial number.

Dear expert,
I have all the data stored in the internal table. I need to output it in the same serial number as it is in internal table along with the serial number (sy-tabix value) against this internal table data in report output display.
Thanks in advance.

Hi,
Loop at itab.
Itab-serialnum = sy-tabix.
Modify Itab.
endlloop.
Naxt call alv display by passing the serial num filed catalog.
Prabhudas

Problem in Sy-tabix value

Hi Experts,
I have a scenario like this
Itab1
A      | B | C
1050 | 10 | 88
1051 | 20 | 99
itab2
A      | D
1050 | 1
1050 | 2
1050 | 3
1051 | 4
1051 | 5
now I want to combine these values in itab3
my reslut should be
A     | B | C | D
1050 10   88 1
1050 10   88 2
1050 10   88 3
1051 20   99 4
1051 20   99 5
i did code like this
    LOOP AT i_tab1 INTO w_tab1.
      CLEAR w_tab3.
    w_tab3-A = itab1-A.
    w_tab3-B = itab1-B.
     w_tab3-C = itab1-C.
    APPEND w_tab3 TO i_tab3.
      loop at i_tab2 INTO w_tab2 where A = w_tab2-A.
      IF sy-tabix EQ 1.
         w_tab3-D = w_tab2-D.
         MODIFY i_tab3 INDEX sy-tabix FROM w_tab3 TRANSPORTING D.
      else.
         w_tab3-A = itab1-A.
        w_tab3-B = itab1-B.
        w_tab3-C = itab1-C.
      w_tab3-D = itab2-D.
        APPEND w_tab3 TO i_tab3
       ENDIF.
       CLEAR w_vttp.
       CLEAR w_vttk_tknum.
     endloop.
   ENDLOOP.
ENDIF.
Probelm:
When I am pocessing 2 record of itab1, the value of sy-tabix for in internal table i_tab2 is not resetting, it's picking the old value.
Can you please tell me how i can reset the sy-tabix of inner loop for the second pass of outer loop.
Thnaks
Krishan
Edited by: Krishan Kumar on Aug 2, 2008 2:40 PM

You can try it like this:
data:
count type i value 1,
w_line type i.
describe table i_tab1 lines w_line.
do w_line time.
read i_tab1 into w_tab1 index count.
loop at tab2 into w_tab2 where A = itab1-A.
   w_tab3-A = itab1-A.
   w_tab3-B = itab1-B.
   w_tab3-C = itab1-C.
   w_tab3-D = itab2-D.
APPEND w_tab3 TO i_tab3
endloop.
count = count + 1.
enddo.
With luck,
Pritam.

How to refresh/initialize sy-tabix in a loop?????

Dear all,
Please do let me know how to refresh/initialize 'sy-tabix' for every new document in a loop statement.
Thanx in advance.
Alok.

Never try to refresh or initialize system variable. It shall always lead to errors in the programs. For this I have an alternative way below.
Please declare a variable for e.g
data: <b>l_count</b> type sy-tabix.
Inside loop you can write the code like this:
say for eg. you need to refresh l_count for every new material.
Loop at itab.
on change of itab-material.
clear : l_count.
endon.
l_count = l_count + 1.
endloop.
Hope this clarifies your issue.
Lakshminarayanan

Sy-index / sy-tabix wrong within loop

Hi friends,
i do a loop over a a table and am writing out the field contents like this:
LOOP AT <dyn_table> INTO <dyn_wa>.
        do.
      assign component sy-index
         of structure <dyn_wa> to <dyn_field>.
        if sy-subrc <> 0.
         EXIT.
        else.
* Here it gets the name of the field based on the sy-index of the component
        READ TABLE l_tab_fields INTO w_tab_fields INDEX sy-index.
      endif.
ENDLOOP.
What now doesnt work is, that whenever i have the read statement uncommented the loop doesnt increment so i only get the first row but that n-times.
any idea where the error is ?
thank you! i am awarding points generously

LOOP AT <dyn_table> INTO <dyn_wa>.
        do.
      assign component sy-index
         of structure <dyn_wa> to <dyn_field>.
        if sy-subrc <> 0.
         EXIT.
        else.
Here it gets the name of the field based on the sy-index of the component
        READ TABLE l_tab_fields INTO w_tab_fields INDEX sy-index.
      endif.
ENDLOOP.
If i gt you rite..i would suggest this
Data: l_tabix type sy-tabix.
LOOP AT <dyn_table> INTO <dyn_wa>.
l_tabix - sy-tabix.
      assign component l_tabix
         of structure <dyn_wa> to <dyn_field>.
        if sy-subrc <> 0.
         EXIT.
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Here it gets the name of the field based on the sy-index of the component
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      endif.
ENDLOOP.
santhosh

Values in loops

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in this loop, i'm adding as many buttons as the condition holds.
for each loop, i adds an action listener.
the problem is when i want to use the action listener. it, of corse, respond to the last button in the loop. how can i make all the buttons work? i dont know ho many loops there will be, ergo i don't know how many buttons there will be... I mean, i have to store each of the values for later use, but how?
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if (listener = theButton)
//do something

Hi. I have a while loop, that runs for some
condition
in this loop, i'm adding as many buttons as the
condition holds.
for each loop, i adds an action listener.
the problem is when i want to use the action
listener. it, of corse, respond to the last button in
the loop. how can i make all the buttons work? i dont
know ho many loops there will be, ergo i don't know
how many buttons there will be... I mean, i have to
store each of the values for later use, but how?[snip]
in the action listener
if (listener = theButton)
//do somethingWhat is "listener" and "theButton" here? If you are only doing something for one particular button then that's the only button that will produce any action. You need to do something more like:// Determine which button was pressed
// Do something (apologies if that's what you're doing already)
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Lee

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I'm after a way to be able to set assetModel[all] = "51" (which shouldn't be too difficult) but also to set [1] = 46, [2]=35, [3]=42 etc.
Current thinking is that I want to have a drop down box where I can select my all options and another to set where I want to copy the list of assets from another room as default values on this form.
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Posting
Consider Ethernet Coax. If you physically loop it, what's going to decrement a counter in the frame?
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Sy-tabix showing different value each time after ENDLOOP stmt

Hi,
when i am executing my program its having one loop statement . after finishing that loop
below the Endloop statement.
sy-tabix some time showing 1 and some time showing 2.
why its chaging its value

Hi,
As per SAP online help on [LOOP statement|http://help.sap.com/saphelp_470/helpdata/EN/fc/eb381a358411d1829f0000e829fbfe/content.htm]
When you leave the loop, SY-TABIX has the same value as when you entered it.
So the value you are seeing in Sy-tabix after endloop is because of some internal table operations before the starting of that loop.
You can check this by comparing the sy-tabix value before first Loop pass and after last loop pass.
Hope this helps you.
regards
Karthik D

Decrease sy-tabix value in Loop

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