Could any body suggest hoe to tune this SELECT stmt?

Question

DATA : BEGIN OF it_bkpf OCCURS 100,
         bukrs  LIKE bkpf-bukrs,
         belnr  LIKE bkpf-belnr,
         gjahr  LIKE bkpf-gjahr,
         blart  LIKE bkpf-blart,
         budat  LIKE bkpf-budat,
         usnam  LIKE bkpf-usnam,
         dbblg  LIKE bkpf-dbblg,
         stblg  LIKE bkpf-stblg,
         stjah  LIKE bkpf-stjah,
         bktxt  LIKE bkpf-bktxt,                    
         grpid  LIKE bkpf-grpid,                    
         awkey  LIKE bkpf-awkey, 
         tcode  LIKE bkpf-tcode,                       
         END OF it_bkpf.
   SELECT bukrs belnr gjahr blart budat usnam dbblg stblg stjah
         bktxt grpid awkey  tcode                          
         INTO TABLE it_bkpf
     FROM bkpf
     WHERE bukrs IN s_bukrs AND
           budat IN postdate AND
           blart IN s_blart AND
            blart in s_blart1 and                         
           usnam IN s_usnam
     %_HINTS ORACLE 'INDEX(BKPF BKPF______Z1)'.
Could you please suggest what is wrong or how to tune this SELECT stmt?

Answer 1

hi,
    for increasing  perfomance of the select statement , check u r using the <b>Proper Index</b> of the table( table contains primary index and secondary index).
once u also check, u provide the low and high values to <b>s_bukrs</b> , <b>s_blart</b>  , <b>s_usnam</b> all these fields( if u define using select-options statement) otherwise it will check from its low value to final value.
    Keep the selected data amount be small.
for furthur refarence u follow these links.
http://www.sapbrain.com/ARTICLES/TECHNICAL/optimization/optimization.html
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/abap/abapPerformanceand+Tuning&
http://www.sap-img.com/abap/performance-tuning-for-data-selection-statement.htm
regards,
AshokReddy.