topic Re: performance of select statement in Application Development and Automation Discussions

performance of select statement

former_member192432 — Fri, 14 Aug 2009 10:36:33 GMT

Hi all,

I doing performance tuning for report .

when i checked in ST05 , the below 2 statements is taking more time eventhough i tried to reduce as much as possible .

SELECT ebeln

EBELP

BEWTP

BWART

budat

MATNR

werks

FROM EKBE INTO TABLE T_EKBE

WHERE BUDAT IN S_EINDT

AND matnr in so_matnr

AND WERKS IN S_WERKS

AND BEWTP EQ 'E'

AND BWART IN ('101','105').

IF NOT t_ekbe[] IS INITIAL.

SELECT ebeln

ebelp

etenr

eindt

menge

wemng

FROM EKET INTO TABLE T_EKET

FOR ALL ENTRIES IN T_EKBE

WHERE EBELN = T_EKBE-EBELN

AND EBELP = T_EKBE-EBELP.

Please suggest how to reduce the time taken.

regards

chetan

Re: performance of select statement

Former Member — Fri, 14 Aug 2009 10:48:49 GMT

The problem should be in the SELECT of EKBE, here u don't use any key fields, I don't know the logic of your program in order to find out the jey fields value before selecting EKBE data.

So u should consider if it needs to create a secondary index with the fields you're using in the select.

Max

Re: performance of select statement

Former Member — Fri, 14 Aug 2009 10:51:50 GMT

in addition, keep in mind that EKBE tends to get very big, especially if you are working with framework orders or contracts. to reduce the size, try to move the data to EKBEH using RM06EKBE.

Re: performance of select statement

ThomasZloch — Fri, 14 Aug 2009 12:37:45 GMT

Maybe you can first access EKET (index on EINDT) and then EKBE, if you normally have a small selection range in S_EINDT. Even better, use a JOIN and let the optimizer decide about the best access path.

Thomas

Re: performance of select statement

Former Member — Fri, 14 Aug 2009 13:45:50 GMT

1) Create an index on database table EKET on field BUDAT.

2) On the selection screen make field BUDAT mandatory.

Re: performance of select statement

Former Member — Mon, 17 Aug 2009 07:05:29 GMT

Itu2019s required to create an index to BUDAT and change the query like below.

FROM EKBE INTO TABLE T_EKBE

WHERE BUDAT IN S_EINDT

AND matnr in so_matnr

AND WERKS

AND BEWTP EQ 'E'

AND BWART EQ u2018101u2019 OR u2018105'.

Sunitha.

Re: performance of select statement

Former Member — Mon, 17 Aug 2009 08:54:04 GMT

Hi,

Use all the primary keys of table EKBE as done in below code.


TABLES: S001.
CONSTANTS: SSOUR_INI  LIKE S001-SSOUR VALUE   IS INITIAL,
           VRSIO_INI  LIKE S001-VRSIO VALUE   IS INITIAL,
           SPMON_INI  LIKE S001-SPMON VALUE   IS INITIAL,

           SPTAG_INI  LIKE S001-SPTAG VALUE   IS INITIAL,
           SPWOC_INI  LIKE S001-SPWOC VALUE   IS INITIAL,
           SPBUP_INI  LIKE S001-SPBUP VALUE   IS INITIAL.


DATA: TA_S001 TYPE STANDARD TABLE OF S001.
DATA: WA_S001 TYPE S001.

SELECT-OPTIONS:
              SO_SPTAG   FOR S001-SPTAG OBLIGATORY,
              SO_KUNNR   FOR S001-KUNNR OBLIGATORY,
              SO_VKORG   FOR S001-VKORG OBLIGATORY,
              SO_VTWEG   FOR S001-VTWEG OBLIGATORY,
              SO_SPART   FOR S001-SPART OBLIGATORY,
              SO_MATNR   FOR S001-MATNR OBLIGATORY.

START-OF-SELECTION.

SELECT        * FROM  S001

       INTO TABLE TA_S001
       WHERE  SSOUR  GE SSOUR_INI     "Greater Equal initial value
       AND    VRSIO  GE VRSIO_INI     "   idem
       AND    SPMON  GE SPMON_INI     "   idem
       AND    SPTAG  IN SO_SPTAG
       AND    SPWOC  GE SPWOC_INI     "   idem
       AND    SPBUP  GE SPBUP_INI     "   idem
       AND    KUNNR  IN SO_KUNNR
       AND    VKORG  IN SO_VKORG
       AND    VTWEG  IN SO_VTWEG
       AND    SPART  IN SO_SPART
       AND    MATNR  IN SO_MATNR.

You will definately find some improvement...

Thanks,

Krishna