Performance Issue - Fetching latest date from a507 table

Question

Hi All,
I am fetching data from A507 table for material and batch combination. I want to fetch the latest record based on the value of field DATBI. I have written the code as follows. But in the select query its taking more time. I dont want to write any condition in where claue for DATBI field because I have already tried with that option.
SELECT kschl
           matnr
           charg
           datbi
           knumh
    FROM a507
    INTO TABLE it_a507
    FOR ALL ENTRIES IN lit_mch1
    WHERE kschl = 'ZMRP'
    AND   matnr = lit_mch1-matnr
    AND   charg = lit_mch1-charg.
SORT it_a507 BY kschl matnr charg datbi DESCENDING.
  DELETE ADJACENT DUPLICATES FROM it_a507 COMPARING kschl matnr charg.

Answer 1

Hi,
These kind of tables will be storing large volumes of data. Thus while making a select on it, its important to use as many primary key fields as possible in the where condition. Here you can try mentioning KAPPL since its specific to a requirement. If its for purchasing use 'M' and try.
if not lit_mch1[] is initial.
SELECT kschl
matnr
charg
datbi
knumh
FROM a507
INTO TABLE it_a507
FOR ALL ENTRIES IN lit_mch1
WHERE kappl = 'M'
AND kschl = 'ZMRP'
AND matnr = lit_mch1-matnr
AND charg = lit_mch1-charg.
endif.
SORT it_a507 BY kschl matnr charg datbi DESCENDING.
DELETE ADJACENT DUPLICATES FROM it_a507 COMPARING kschl matnr charg.
This should considerably increase the performance
Regards,
Vik