Hi experts,
Users complain some ABAP programs run slowly all of a sudden. I check ST03 -> average background job response time but it is not getting worse. I run and enabled sap_IndexStatsMaintenance. Will it solve the problem? If not, is it ok to drop all proc cache at midnight?
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I use SAT and find the program spended 94% on
SELECT mseg~matnr mseg~bukrs mkpf~usnam AS ernam mkpf~budat AS erdat "$05
INTO CORRESPONDING FIELDS OF TABLE itab "$05
FROM mkpf INNER JOIN msegON mseg~mjahr = mkpf~mjahr
AND mseg~mblnr = mkpf~mblnr
WHERE mkpf~budat IN s_erdatAND mseg~matnr IN s_matnr
AND mseg~bwart = zbwart .
DELETE itab WHERE bukrs <> l_bukrs.
ENDIF.
and number of rows of sequential read are not increased.
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and ST05 shows SQL server used the right index:
Index seek: MSEG~Z02(by the way, users select only the last day 2015/5/11 ~ 2015/5/11)
Clustered index seek: MSEG~0
Clustered index seek: MKPF~0
/****** Object: Index [MSEG~Z02] Script Date: 5/12/2015 6:14:18 PM ******/
CREATE NONCLUSTERED INDEX [MSEG~Z02] ON [tcp].[MSEG]
(
[MANDT] ASC,
[/BEV2/ED_AEDAT] ASC,
[BWART] ASC,
[WERKS] ASC,
[LGORT] ASC,
[MATNR] ASC,
[SOBKZ] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
GO
