table modification problem

[Former Member]

Hi,

I have one problem.

Suppose I have two delivery doc no & delivery item. Now i m getting the delivery quantity from lips table based on delivery doc no & delivery item.

Now i have to modify my same table having field delivery qty.

sample coding.

data: begin of ty_str,

del_doc like vbfa-vbeln,

del_item like vbfa-posnn,

lfimg like lips-lfimg,

end of ty_str.

data: gt_str like table of ty_str,

gs_str like line of gt_str.

*consider my records r in gt_str.

loop at gt_str into gs_str.

select single lfimg from lips into lv_lfimg where vbeln = gs_str-del_doc

and posnr = gs_str-del_item.

*now i wanted to modify the field lfimg in table gt_str based on del_doc & del_item.

endloop.

Any body will pls suggest me the solution.

[uwe_schieferstein]

Hello Neha

Simply modify your itab like this:

loop at gt_str into gs_str.
select single lfimg from lips into lv_lfimg 
  where vbeln = gs_str-del_doc
  and posnr   = gs_str-del_item.

*now i wanted to modify the field lfimg in table gt_str based on del_doc & del_item.
  IF ( syst-subrc = 0 ).
    gs_str-lfimg = lv_lfimg.
    MODIFY gt_str FROM gs_str.
  ENDIF.
endloop.

I would suggest the following simplification:

loop at gt_str into gs_str.
select single lfimg from lips into gs_str-lifmg     " lv_lfimg 
  where vbeln = gs_str-del_doc
  and posnr   = gs_str-del_item.

*now i wanted to modify the field lfimg in table gt_str based on del_doc & del_item.
  IF ( syst-subrc = 0 ).
    MODIFY gt_str FROM gs_str.
  ENDIF.
endloop.

Furthermore, if you have many records in gt_str then you should replace the SELECT SINGLE with an array fetch:

DATA:
  gt_tmp    TYPE TABLE of ty_str,
  gs_tmp   TYPE ty_str.

IF ( gt_str IS NOT INITIAL ).
  SELECT * FROM lips INTO CORRESPONDING FIELDS OF TABLE gt_tmp
    FOR ALL ENTRIES IN gt_str
    WHERE vbeln = gs_str-del_doc
    AND      posnr = gs_str-del_item.
ENDIF.

SORT gt_tmp BY vbeln posnr.  " for BINARY SEARCH

loop at gt_str into gs_str.
  READ gt_tmp INTO gs_tmp
    WITH KEY vbeln = gs_str-del_doc
                     posnr = gs_str-del_item
    BINARY SEARCH.

*now i wanted to modify the field lfimg in table gt_str based on del_doc & del_item.
  IF ( syst-subrc = 0 ).
    MODIFY gt_str FROM gs_tmp.    " gs_str.
  ENDIF.
endloop.

Regards

Uwe

[Former Member]

hi,

1) select the fields outside the loop.

2) Then loop into the itab into work area and modify the itab using

3) MODIFY ITAB TRANSPORTING < key fields in table >.

This modify statement would help.