Performance of MSEG table with MKPF and LIKP

Question

Hi,
I am having an Issue with MSEG table. It has 6.5 lakh (= 650,000) records in Production System.
Can anyone help me with its performance. The code I am using now is.
SELECT MBLNR mjahr BLDAT BUDAT LE_VBELN FROM MKPF INTO TABLE IT_MKPF WHERE
       BUDAT IN S_POSDAT and
       MBLNR IN S_GRNUM.
IF NOT IT_MKPF[] IS INITIAL.
SELECT mblnr mjahr bwart lifnr FROM MSEG INTO TABLE IT_MSEG FOR ALL ENTRIES IN IT_MKPF
  WHERE bwart eq p_movtyp and
               lifnr in S_VENDOR and
               mblnr eq it_mkpf-mblnr and
               mjahr eq it_mkpf-mjahr.
IF NOT IT_MSEG[] IS INITIAL.
SELECT vbeln lfdat verur lifnr FROM LIKP INTO TABLE IT_LIKP FOR ALL ENTRIES IN IT_MKPF
  WHERE verur in S_REFER  and
               lifnr in S_VENDOR and
               vbeln eq it_mkpf-le_vbeln.
Is there any other field which I can give for MSEG-LIKP or MSEG-MKPF combination tables to increase the performance.
Edited by: Thomas Zloch on Apr 19, 2011 2:22 PM - please do not use local units

Answer 1

Hi
try this way the performance is better ...
for MSEG,BKPF and BSEG tables try to use SELECT...ENDSELECT instead of for all entries...
SELECT MBLNR mjahr BLDAT BUDAT LE_VBELN FROM MKPF INTO wa_MKPF WHERE
        BUDAT IN S_POSDAT and
        MBLNR IN S_GRNUM.
SELECT mblnr mjahr bwart lifnr FROM MSEG INTO wa_MSEG
   WHERE bwart eq p_movtyp and
                lifnr in S_VENDOR and
                mblnr eq it_mkpf-mblnr and
                mjahr eq it_mkpf-mjahr.
SELECT vbeln lfdat verur lifnr FROM LIKP INTO wa_LIKP
            WHERE verur in S_REFER  and
                lifnr in S_VENDOR and
                vbeln eq it_mkpf-le_vbeln.
"APPEND to final table
ENDSELECT.
ENDSELECT.
ENDSELECT.
Prabhudas