Performance issue on LIPS table

Hi Experts,
I need to know the delivery for particular batches and materials,Hence i am using the below select query in my program
SELECT vbeln
             posnr
             matnr
             werks
             lgort
             charg
             lfimg
             meins FROM lips
            INTO TABLE int_lips
FOR ALL ENTRIES IN int_mchb
                     WHERE vbeln IN s_vbeln
                         AND pstyv IN s_pstyv
                         AND matnr EQ int_mchb-matnr
                         AND werks EQ int_mchb-werks
                        AND lgort EQ int_mchb-lgort
                        AND charg EQ int_mchb-charg.
My program is fine when delivery is given in the selection screen but it is taking lot of time when no delivery is entered in the selection screen.
Please guide me how can i increase my program performance. Is there is any need to create the secondary index?
Thanks in advance.
Regards,
Kavya

Using
vbeln IN s_vbeln
slows down your query as the cost of IN operator is high. If it is empty then all records are processed. As this is the left most column in the table so it double slows down as the set of records can't be restrcited to smaller group before next fields are compared.
The best would be
select-options s_vbeln ... obligatory.
"or
if s_vbeln[] is not initial.
select ....
endif.
Regards
Marcin

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Edited by: Earthlink on Nov 20, 2010 12:04 PM
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Earthlink wrote:
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Moved to correct forum by moderator
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 AND UMLME <> 0.
endif.
Now here in the Table t_mat abt 180000 record are there. when I am using the table t_mat for all entries with respect to t_mat and using all primery key itself.
the performance of program is dull. It is giving to time out Error
Can some One suggest some solution.
Regards
Swati namdev

few suggessions:
1. First avoid "corresponding fields of " statement. Use "into table" instead.
2. Use open cursor to fetch data
DATA: s_cursor TYPE cursor.
OPEN CURSOR WITH HOLD s_cursor FOR
SELECT mara~matnr werks xchar mtart matkl meins trame
umlmc mara~lvorm as lvorm_mara
marc~lvorm as lvorm_marc
FROM mara INNER JOIN marc
ON maramatnr = marcmatnr
WHERE mara~matnr IN matnr
AND werks IN werks
AND mtart IN matart
AND matkl IN matkla
AND ekgrp IN ekgrup
and spart in spart.
if t_mat[] is not initial.
DO.
FETCH NEXT CURSOR s_cursor
 APPENDING
 TABLE t_mat
 PACKAGE SIZE '2000'.
IF sy-subrc <> 0.
 CLOSE CURSOR s_cursor.
 EXIT.
ENDIF.
ENDDO.
Edited by: Ravi Kumar Singh on Apr 7, 2008 11:07 AM

Performance issue on LIPS table

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