topic Re: Problem with Loop index..... in Application Development and Automation Discussions

Problem with Loop index.....

Former Member — Sat, 15 May 2010 04:05:43 GMT

Hi Experts,

i have a problem with Loop index, bcoz i am using Loop inside Loop, i know we cant use loop under loop, but as per my requirement i need to use loop under loop.

my code is like:

Loop AT itab1 into wa_itab1.

read table table it_header into wa_header with key field1 = wa_itab1-field1.

if sy-subrc = '0'.

Loop AT itab2 into wa_itab2 where field2 = wa_header-field2.

here processing logic........

delete itab2 from wa_itab2. ( or) del the specific record from ITAB1.

Modify itab1 from wa_itab1 TRANSPORTING FIELD3.

endloop.

endif.

endllop.

Here my requirement is from ITAB1 allways i need to loop first, since i am modifying or delete the records from ITAB1.

from ITAB1 in second loop also i neeed to pic first record, But here prob is 2nd time SY-TABIX becoming 2,

so How to make SY-TABIX should be 1.

i have checked like Loop AT itab1 into wa_itab1 FROM '1'. ( also not working).

can anyone give me the logic.....

Regards,

Sudha.

Re: Problem with Loop index.....

Former Member — Sat, 15 May 2010 05:04:11 GMT

As per my understanding u have to delete/ modify the specific index of ITAB1,

For this you have to declare one variable of type SY-tabix, then u have to assign the current index to it

and at the specified condition u can perform ur operation

using:

delete itab1 index ..................

modify itab1 index ... transporting...

Re: Problem with Loop index.....

Former Member — Sat, 15 May 2010 05:13:49 GMT

HI Sudha,

data : tabix type sy-tabix. " add this one
Loop AT itab1 into wa_itab1.

read table table it_header into wa_header with key field1 = wa_itab1-field1.
if sy-subrc = '0'.

*Loop AT itab2 into wa_itab2 where field2 = wa_header-field2." avoid this loop with read table
read table itab2 into wa_itab2 with key  field2 = wa_header-field2.
if sy-subrc = 0.
* here processing logic........ 
delete itab2 index sy-tabix." ( or) del the specific record from ITAB1.
DELETE ITAB2 WHERE FIELD2 = WA_HEADER-FIELD2 " Incase you want to delete multiple records
endif,
*endloop." Avoid this one
endif.
" Unless you modify WA_ITAB1 you dont required this modify statement
" Since you are not changing FIELD3 of WA_ITAB1 you dont need to modify this ITAB1
Modify itab1 from wa_itab1 TRANSPORTING FIELD3. " This should be in First LOOP only
endllop.

Cheerz

Ram

Re: Problem with Loop index.....

Former Member — Sat, 15 May 2010 06:41:39 GMT

Hi Ram, Thank you for your replay..

but here the itab2 should repeat multiple times until the cond is satisfied. if i use Read stat it cant repeat right...

if wa_header-load_qt > 0.

Loop AT itab2 into wa_itab2 where field2 = wa_header-field2. ( should repeat multiple times)

here processing logic........

delete itab2 from wa_itab2. ( or) del the specific record from ITAB1.

Modify itab1 from wa_itab1 TRANSPORTING FIELD3.

endloop.

endif.

Edited by: sudhasumathi on May 15, 2010 8:43 AM