Deleting from Internal Table (dynamic)

Question

Hi,
I have an Internal table, which will contain daily movements for plants per material.
The internal table will contain 4 plants per material, with more than 1 material.
Now, i have four columns. If all of those columns for that material and for all plants for that material equal zero, i want to delete the specific record.
For example
Material     Plant      Daily 1  Daily 2  Daily 3  Daily 4
102            1           0          0           0          0
102            2           0          0           0          0
102            3           0          0           0          0
102            4           0          0           0          0
So, these 4 records should be deleted. However, say on of the daily columns will equal 1, then keep the 4 records (they are linked by material and plant.)
How do I do this?
Points will be rewarded and all help will be greatly appreciated.
Thanks,
John

Answer 1

Check this.
DATA: BEGIN OF itab OCCURS 0,
        matnr LIKE marc-matnr,
        werks LIKE marc-werks,
        daily1 TYPE i,
        daily2 TYPE i,
        daily3 TYPE i,
        daily4 TYPE i.
DATA: END OF itab.
DATA: itab_per_matnr LIKE itab OCCURS 0 WITH HEADER LINE,
      wa_itab        LIKE itab.
itab_per_matnr[] = itab[].
LOOP AT itab INTO wa_itab.
*-- check if there is at least one non-zero record for this material
  LOOP AT itab_per_matnr WHERE matnr = wa_itab-matnr
                           AND ( daily1 > 0 OR
                                 daily2 > 0 OR
                                 daily3 > 0 OR
                                 daily4 > 0 ).
    EXIT
  ENDLOOP.
  IF sy-subrc <> 0.
    DELETE itab WHERE matnr = wa_itab-matnr.
  ENDIF.
ENDLOOP.