Code Optimization for handling large volume of data

Hi All,
We are facing a problem when executing a report... lot of time is taken to execute..... Many a times the program is terminated with a dump that "Timeout :Program terminated because of endless loop".
the internal table which has to looped has more than 8.5 lac records...
and for each run of loop there are two read and one select statement (unavoidable)...,,
(We have followed almost all the optimization techniques,,,,)
Please suggest if you have any idea as to ... what can be done in such situation....
Thanks and Regards,
Sushil Hadge.

Hi Martin,
Following is the piece of code.....
SELECT bukrs gpart hkont waers
      FROM dfkkop
      INTO TABLE it_dfkkop
      WHERE bukrs = p_bukrs AND bldat IN so_bldat AND hkont IN so_hkont.
SORT it_dfkkop BY gpart.
Loop at it_dfkkop into wa_dfkkop.
<Read statement>
<Read Statement>
ON CHANGE OF wa_dfkkop-gpart.
SELECT gpart hkont waers betrw FROM dfkkop INTO TABLE it_subtot WHERE hkont = wa_dfkkop-hkont AND gpart = wa_dfkkop-gpart.
      IF it_subtot IS NOT INITIAL.
        LOOP AT it_subtot INTO wa_subtot.
          v_sum = v_sum + wa_subtot-betrw.
        ENDLOOP.
     Endif.
Endon.
Endloop.
Please suggest if this can be improved in some way....
Thanks ,
Sushil
Edited by: Sushil Hadge on Jun 4, 2008 3:12 PM

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