Credit note comparison report

Question

hi friends , iam new sap/reports got a assigment
    credit note compare report i have to display
    mblnr,matnr.charg,menge ,vbeln,fkdat,matnr,charg,batch.
    till menge its from mseg and rest from vbrk and vbrp.
    to display all records for line itmes also .
    i selected all the fields from mseg one itab and distinct vbeln in one itab
    and all the vrecords from vbrp.
    my report had now is verrrrrrrrrrrrrry slow .
    pls help me with code.
SELECT   mkpf~bldat
           mseg~werks
           mseg~mblnr
           mseg~matnr
           mseg~charg
           mseg~menge
           INTO CORRESPONDING FIELDS OF TABLE imseg
           FROM mkpf
           INNER JOIN mseg
           ON  msegmblnr = mkpfmblnr
               WHERE mkpf~bldat IN s_bldat
               AND   mseg~werks IN s_werks
               AND   mseg~mblnr IN s_mblnr
               AND   mseg~bwart = '972'.
  SELECT DISTINCT vbeln
                  fkdat
                  FROM vbrk INTO CORRESPONDING FIELDS OF TABLE icnot.
  SELECT vbrp~vbeln
         vbrp~matnr
         vbrp~charg
         vbrp~fkimg
         FROM vbrp INTO TABLE icnq.
LOOP AT icnot.
    CLEAR icno.
    icno-vbeln = icnot-vbeln.
    icno-fkdat = icnot-fkdat.
    READ TABLE icnq WITH KEY vbeln = icno-vbeln.
    IF sy-subrc = 0.
      icno-matnr = icnq-matnr.
      icno-charg = icnq-charg.
      icno-fkimg = icnq-fkimg.
    ENDIF. "if sy-subrc
    APPEND icno.
  ENDLOOP." LOOP AT icnot

Answer 1

Hi Farukh,
Check the time consumed by each query first in debug mode. 
If you find that the first one is consume most of processing time (which i assume to be) then try to use exsitng <b>view on both "WB2_V_MKPF_MSEG2"</b> instead of writing your own inner join on MSEG and MKPF .
Also try to avoid using the clause INTO CORRESPONDING FIELDS OF internal table.
these two shall enhance the performance considerably,
Lakshmi