Re: Expensive SQL statements in PI 7.3 For The Object SWWWIHEAD

Hi Adel,

Thanks for your inputs, let me clear you on what exactly my issue, we are reeving weekly EWA report  for PI box, in that report we are reeving the continuous high expensive SQL statements, I have checked all listed objects and queries which I observed only SWWIHEAD objet we are getting more I/O, below are statements which EWA pointing, can you please help me on the any issues with select statements in the below query for SWWWIHEAD,  and one more thing which you replied I checked that note I think its intended for  the field WI_CHCKWI in the WHERE condition, but in my case the SQL select statement is using the filed  WI_ID for select statement, can you please check the below query for SWWWIHEAD and can you suggest still the above note is applicable and any issue with statements.

High Expensive SQL statements:

The table above shows the cumulative load of the top statements from cache based on elapsed database time. If the database was inactive for more than one day before the analysis was performed, the information provided may not be entirely accurate.

Note: The rating is unrated since the system has not yet been very active. The overall section rating is linked to the above table rating; the ratings are described in SAP Note 551646.

If the table rating is RED, there are SQL statements that cause a high percentage of the overall load on your SAP system.
If the table rating is YELLOW, there are SQL statements that cause a considerable percentage of the overall load on your SAP system.
If the table rating is GREEN, your system SQL statement cache contains no significant problems.
If the table rating is UNRATED, the cache utilization, system load (dialog steps or total reads) was too low, or some analysis data was unavailable.

The following table lists the load of each SQL statement individually. The load of the statement is evaluated against the total load since database startup. If an object name in this table contains the character "/", it may indicate a join. If an object is not in the ABAP Dictionary (transaction SE12) with the object name listed, check for each part of the join (items separated by "/").

1. 18.1 Cache Analysis On 05.01.2015

SELECT
"WI_ID"

FROM

"SWWWIHEAD"

WHERE

"CLIENT"= :A0 AND "WI_TYPE"= :A1 AND "WI_STAT" IN ( :A2, :A3) AND "WF_TYPE"= :A4

Execution Plan From: V$SQL_PLAN sql_id: dqsaj4vn26r31

SELECT STATEMENT Estimated Costs= 19.803 Estimated Rows= 0

Optimizer: ALL_ROWS

3 INLIST ITERATOR

2 TABLE ACCESS BY INDEX ROWID SWWWIHEAD

Estimated Costs= 19.803 Estimated Rows= 288.498

Filter predicates: "WF_TYPE"=:A4

1. Estim. Bytes: 9.808.932
2. Estim. CPU-Costs = 214.099.156 Estim. IO-Costs = 19.768

1 INDEX RANGE SCAN SWWWIHEAD~C

Estimated Costs= 529 Estimated Rows= 288.498

Access predicates:

"CLIENT"=:A0 AND "WI_TYPE"=:A1 AND (("WI_STAT"=:A2 OR "WI_STAT"=:A3))

Search Columns: 3

1. Estim. CPU-Costs = 15.602.140 Estim. IO-Costs = 527

000040
000041 *---- get process instances in final state (including subflows)
000042 SELECT wi_id FROM swwwihead CLIENT SPECIFIED
000043 INTO CORRESPONDING FIELDS OF TABLE lt_processes_final
000044 WHERE client = m_client
000045 AND wi_type = swfco_wi_flow
000046 AND wi_stat IN lr_wi_stat
000047 AND wf_type = c_wf_type_bpm.

1. 18.1.2 Access on SWWWIHEAD

SELECT

FROM "SWWWIHEAD"

WHERE

"CLIENT"= :A0 AND "WI_ID"= :A1 AND "WI_TYPE" IN ( :A2, :A3, :A4, :A5, :A6, :A7, :A8, :A9, :A10, :A11) AND "WI_STAT" IN ( :A12, :A13, :A14, :A15, :A16, :A17, :A18, :A19, :A20, :A21, :A22)

Execution Plan From: V$SQL_PLAN sql_id: 5m9c7vwbg047r

SELECT STATEMENT Estimated Costs= 1 Estimated Rows= 0

Optimizer: ALL_ROWS

2 TABLE ACCESS BY INDEX ROWID SWWWIHEAD

Estimated Costs= 1 Estimated Rows= 1

Filter predicates:

(INTERNAL_FUNCTION("WI_TYPE") AND INTERNAL_FUNCTION("WI_STAT"))

1. Estim. Bytes: 435
2. Estim. CPU-Costs = 4.852 Estim. IO-Costs = 1

1 INDEX UNIQUE SCAN SWWWIHEAD~0

Estimated Costs= 0 Estimated Rows= 1

Access predicates: "CLIENT"=:A0 AND "WI_ID"=:A1

Search Columns: 2

1. Estim. CPU-Costs = 3.059 Estim. IO-Costs = 0

000069 SELECT * FROM (tablename) INTO TABLE lt_workitems_header
000070 where
000071 wi_id in lt_rangetab_for_id[] and
000072 wi_type in lrt_type and
000073 wi_stat in lrt_state and
000074 wi_cd in me->if_swf_rep_header_selection~rangetab_for_creation_date[] and
000075 wi_ct in me->if_swf_rep_header_selection~rangetab_for_creation_time[] and
000076 wi_rh_task in me->if_swf_rep_header_selection~rangetab_for_task[] and
000077 wi_prio in me->if_swf_rep_header_selection~rangetab_for_priority[] and
000078 wi_dh_stat in me->if_swf_rep_header_selection~rangetab_for_dhsta[] and
000079 crea_tmp in me->if_swf_rep_header_selection~rangetab_for_creation_ts[].

1. 18.1.3 Access on SWW_WI2OBJ

SELECT
"WI_ID","TOP_WI_ID","WI_RH_TASK","WI_RELEASE","CREA_TMP","CATID","INSTID","TYPEID","WI_RELTYPE"

FROM

"SWW_WI2OBJ"

WHERE

"CLIENT"= :A0 AND "CATID"= :A1 AND "INSTID"= :A2 AND "TYPEID"= :A3

Execution Plan From: V$SQL_PLAN sql_id: 0hm5dv691wsdk

SELECT STATEMENT Estimated Costs= 2 Estimated Rows= 0

Optimizer: ALL_ROWS

2 TABLE ACCESS BY INDEX ROWID SWW_WI2OBJ

Estimated Costs= 1 Estimated Rows= 2

1. Estim. Bytes: 234
2. Estim. CPU-Costs = 7.341 Estim. IO-Costs = 1

1 INDEX RANGE SCAN SWW_WI2OBJ~001

Estimated Costs= 1 Estimated Rows= 2

Access predicates:

"CLIENT"=:A0 AND "CATID"=:A1 AND "TYPEID"=:A3 AND "INSTID"=:A2

Search Columns: 4

1. Estim. CPU-Costs = 5.777 Estim. IO-Costs = 1

000053 select * from sww_wi2obj appending corresponding fields of
000054 table m_swwwi2obj
000055 where crea_tmp in lt_rangetab_for_time
000056 and catid eq i_object-catid
000057 and instid in lr_instid
000058 and typeid eq i_object-typeid
000059 and wi_reltype in lr_reltype
000060 and wi_rh_task in im_rangetab_for_tasks.

1. 18.1.4 Access on SWFRXIHDR

SELECT

FROM "SWFRXIHDR"

WHERE

"CLIENT"= :A0 AND "GUID"= :A1

Execution Plan From: V$SQL_PLAN sql_id: 6cnqxjunv5nk6

SELECT STATEMENT Estimated Costs= 1 Estimated Rows= 0

Optimizer: ALL_ROWS

2 TABLE ACCESS BY INDEX ROWID SWFRXIHDR

Estimated Costs= 1 Estimated Rows= 1

1. Estim. Bytes: 130
2. Estim. CPU-Costs = 4.561 Estim. IO-Costs = 1

1 INDEX UNIQUE SCAN SWFRXIHDR~0

Estimated Costs= 0 Estimated Rows= 1

Access predicates: "CLIENT"=:A0 AND "GUID"=:A1

Search Columns: 2

1. Estim. CPU-Costs = 3.059 Estim. IO-Costs = 0

000011 *- select
000012 SELECT SINGLE * FROM swfrxihdr
000013 INTO l_xi_header
000014 WHERE guid = im_message_guid.

1. 18.1.5 Access on SWWWIHEAD

SELECT
"WI_ID","WI_CHCKWI"

FROM

"SWWWIHEAD"

WHERE

"CLIENT"= :A0AND "WI_CHCKWI" IN ( :A1, :A2, :A3, :A4, :A5) AND "WI_STAT" IN ( :A6, :A7, :A8, :A9, :A10, :A11, :A12)

Execution Plan From: V$SQL_PLAN sql_id: 13knr36sgyax0

SELECT STATEMENT Estimated Costs= 8 Estimated Rows= 0

Optimizer: ALL_ROWS

3 INLIST ITERATOR

2 TABLE ACCESS BY INDEX ROWID SWWWIHEAD

Estimated Costs= 8 Estimated Rows= 303

1. Estim. Bytes: 12.120
2. Estim. CPU-Costs = 85.034 Estim. IO-Costs = 8

1 INDEX RANGE SCAN SWWWIHEAD~B

Estimated Costs= 2 Estimated Rows= 85

Filter predicates:

("WI_STAT"=:A6 OR "WI_STAT"=:A7 OR "WI_STAT"=:A8 OR "WI_STAT"=:A9 OR "WI_ST

AT"=:A10 OR "WI_STAT"=:A11 OR "WI_STAT"=:A12)

Access predicates:

"CLIENT"=:A0 AND (("WI_CHCKWI"=:A1 OR "WI_CHCKWI"=:A2 OR "WI_CHCKWI"=:A3 OR

"WI_CHCKWI"=:A4 OR "WI_CHCKWI"=:A5))

Search Columns: 2

1. Estim. CPU-Costs = 31.846 Estim. IO-Costs = 2

000067
000068 SELECT wi_id wi_chckwi FROM swwwihead CLIENT SPECIFIED
000069 INTO CORRESPONDING FIELDS OF TABLE lt_workitems_not_final
000070 FOR ALL ENTRIES IN lt_processes_final
000071 WHERE client = m_client
000072 AND wi_chckwi = lt_processes_final-wi_id
000073 AND wi_stat IN lr_wi_stat.

1. 18.1.6 Access on SWWWIHEAD

SELECT

FROM "SWWWIHEAD"

WHERE

"CLIENT"= :A0 AND "WI_ID"= :A1

Execution Plan From: V$SQL_PLAN sql_id: 3g15sr2ama68f

SELECT STATEMENT Estimated Costs= 1 Estimated Rows= 0

Optimizer: ALL_ROWS

2 TABLE ACCESS BY INDEX ROWID SWWWIHEAD

Estimated Costs= 1 Estimated Rows= 1

1. Estim. Bytes: 435
2. Estim. CPU-Costs = 4.749 Estim. IO-Costs = 1

1 INDEX UNIQUE SCAN SWWWIHEAD~0

Estimated Costs= 0 Estimated Rows= 1

Access predicates: "CLIENT"=:A0 AND "WI_ID"=:A1

Search Columns: 2

1. Estim. CPU-Costs = 3.059 Estim. IO-Costs = 0

000033 SELECT SINGLE * INTO wi_header FROM swwwihead
000034 WHERE wi_id = wi_id.

Thanks in Advance..