To improve performance for report

Question

Hi Expert,
i have generated the opensales order report which is fetching data from VBAK it is taking more time exectuing in the forground itself.
it is going in to dump in foreground and i have executed in the background also but it is going in to dump.
SELECT vbeln
           auart
           submi
           vkorg
           vtweg
           spart
           knumv
           vdatu
           vprgr
           ihrez
           bname
           kunnr
    FROM vbak
    APPENDING TABLE itab_vbak_vbap
    FOR ALL ENTRIES IN l_itab_temp
*BEGIN OF change 17/Oct/2008.
    WHERE erdat IN s_erdat              AND
         submi = l_itab_temp-submi     AND
*End of Changes 17/Oct/2008.
          auart = l_itab_temp-auart     AND
*BEGIN OF change 17/Oct/2008.
          submi = l_itab_temp-submi     AND
*End of Changes 17/Oct/2008.
          vkorg = l_itab_temp-vkorg     AND
          vtweg = l_itab_temp-vtweg     AND
          spart = l_itab_temp-spart     AND
          vdatu = l_itab_temp-vdatu     AND
          vprgr = l_itab_temp-vprgr     AND
          ihrez = l_itab_temp-ihrez     AND
          bname = l_itab_temp-bname     AND
          kunnr = l_itab_temp-sap_kunnr.
    DELETE itab_temp FROM l_v_from_rec TO l_v_to_rec.
  ENDDO.
Please give me suggession for improving performance for the programmes.

Answer 1

hi,
you try like this
DATA:BEGIN OF itab1 OCCURS 0,
     vbeln LIKE vbak-vbeln,
     END OF itab1.
DATA: BEGIN OF itab2 OCCURS 0,
      vbeln LIKE vbap-vbeln,
      posnr LIKE vbap-posnr,
      matnr LIKE vbap-matnr,
      END OF itab2.
DATA: BEGIN OF itab3 OCCURS 0,
      vbeln TYPE vbeln_va,
      posnr TYPE posnr_va,
      matnr TYPE matnr,
      END OF itab3.
SELECT-OPTIONS: s_vbeln FOR vbak-vbeln.
START-OF-SELECTION.
  SELECT vbeln FROM vbak INTO TABLE itab1
  WHERE vbeln IN s_vbeln.
  IF itab1[] IS NOT INITIAL.
    SELECT vbeln posnr matnr FROM vbap INTO TABLE itab2
    FOR ALL ENTRIES IN itab1
    WHERE vbeln = itab1-vbeln.
  ENDIF.