Modify Example

[Former Member]

Hey Folks,

I have a problem when using modify . in my requirement I have table itab and itab1

following is the below code

loop at itab into wa_itab.

read table it_itab1 into wa_itab1 with key vbeln = wa_itab-a binary search.

if sy-subrc = 0.

wa_tab-b = wa_itab1-b

endif.

modify it_itab1 from wa_itab1.

endloop.

how can the change the contents of ITAB1.

I am getting a short dump saying i cant modify the table while inserting.

Thanks

Larry

[Former Member]

Hi,

Try this one

loop at itab into wa_itab.

read table it_itab1 into wa_itab1 with key vbeln = wa_itab-a binary search.

if sy-subrc = 0.

wa_tab-b = wa_itab1-b

endif.

modify table it_itab1 from wa_itab1.

endloop.

Cheers

Kothand

[Former Member]

Try this:

LOOP AT itab INTO wa_itab.
  READ TABLE it_itab1 INTO wa_itab1 WITH KEY vbeln = wa_itab-a BINARY
  SEARCH.
  IF sy-subrc = 0.
    wa_tab-b = wa_itab1-b.
  ENDIF.
  MODIFY it_itab1 FROM wa_itab1 INDEX sy-tabix.
ENDLOOP.

Rob

[former_member156446]

"declare field symbols. using this you will get good 
performance bcoz you can remove modify statement 
completely..

loop at itab assigning <fs_itab>.
read table it_itab1 assigning <fs_itab1> with key vbeln = <fs_itab>-a binary search.
if sy-subrc = 0.
<fs_tab>-b = <fs_itab1>-b
endif.

endloop.

[Former Member]

Hi Larry ,

In the code you are assigning the value of itab1 to itab

i.e.

wa_tab-b = wa_itab1-b

means you are changing contents of itab table and not itab1.

So you should move the contents from itab to itab1.

wa_tab1-b = wa_itab-b

and in modify statement use transporting field.

i.e.

modify it_itab1 from wa_itab1 transporting b where a = wa_itab-a.

where b is field of table.

Best regards,

Brijesh