BSEG Performans

Question

Hi ABAPers,
I have a problem with BSEG table performance.
When i run this select :
  select bukrs belnr gjahr shkzg dmbtr hkont INTO TABLE itab_bseg_II from BSEG
                     where GJAHR EQ P_RYEAR
                       AND HKONT EQ X011Z-BILKT
                       and PRCTR IN S_PRCTR.
reduces report performans. How can i increase select perormance? Please help.
Best regards.
Munur EBCIOGLU

Answer 1

Hi,
BSEG is cluse table and top of that you are not using the full key ( BUKRS, BELNR, GJAHR, BUZEI ) to read BSEG, thats why you have performance problem.
Also, since BSEG is cluster table you can not create index on it. Instead  i suggest you to use <b>BSIS ( Accounting: Secondary Index for G/L Accounts )</b>.
You have multiple options here:
1. If you can somehow get the company code also, use the BUKRS ,HKONT , GJAHR ( in this order only ) as a select condition. And then delete the entries where the profit center does not fall in seletion criteria. So you code would be
* select data from BSIS
SELECT bukrs belnr gjahr
             shkzg dmbtr hkont FROM BSIS
                                         INTO TABLE itab_bsis
                                         WHERE bukrs in s_bukrs      AND
                                                      hkont = x011z-bilkt  AND
                                                      gjahr  = p_ryear.
* delete record based on profit centers
DELETE itab_bsis WHERE NOT ( prctr in s_prctr ).
2. If you cannot get the company code but you want to get the data for all company codes then you should use following given code. Lets say the lowest company code you have is "1000' and highest company code number is '7000'.
data: l_min_bukrs  like bkpf-bukrs value '1000',
        l_max_bukrs like bkpf-bukrs value '7000'.
ranges: r_bukrs for bkpf-bukrs.
r_bukrs-sign   = 'I'.
r_bukrs-option = 'BT'.
r_bukrs-low    = l_min_bukrs.
r_bukrs-high   = l_max_bukrs.
APPEND r_bukrs.
* select data from BSIS
SELECT bukrs belnr gjahr
             shkzg dmbtr hkont FROM BSIS
                                         INTO TABLE itab_bsis
                                         WHERE bukrs in r_bukrs      AND
                                                      hkont = x011z-bilkt  AND
                                                      gjahr  = p_ryear.
* delete record based on profit centers
DELETE itab_bsis WHERE NOT ( prctr in s_prctr ).
3. Create a index on table BSIS with fields HKONT, GJAHR and PRCTR and use following code.
SELECT bukrs belnr gjahr
             shkzg dmbtr hkont FROM BSIS
                                         INTO TABLE itab_bsis
                                         WHERE hkont = x011z-bilkt  AND
                                                      gjahr  = p_ryear       AND
                                                      prctr  IN s_prctr.
Let me know if you have any questions.
Regards,
RS