How to improve the extactor performance?

Dear all,
I have an ODS with active data (1,180,000Records).
I also have an InfoCube. It has a characteristices C1 with 5 navigation attributes.
For C1, it has 4,300,000 records in the master.
I have tried to load data to InfoCube from the ODS.
But it takes more than 12 hours, how can I improve the performance or is there any bug in BW for so many records extracting?
Thank you very much.
Seven

dear Seven,
do you try to delete infocube's index first ?
infocube->manage->performance->delete indexes
take a look oss note
130253-General tips on uploading transaction data to BW
Tip 8:
When you load large quantities of data in InfoCubes, you should delete
the secodary indexes before the loading process and then recreate them afterwards if the following applies: The number of the records that are loaded is big in comparison to the number of records that already exist in the (uncompressed) F fact table. For non-transactional InfoCubes, you must delete the indexes to be able to carry out parallel loading.
Tip 9:
When you load large quantities of data in an InfoCube, the number range buffer should be increased for the dimensions that are likely to have a high number of data sets.
To do this, proceed as follows. Use function module RSD_CUBE_GET to find the object name of the dimension that is likely to have a high number of data sets.
Function module settings:
I_INFOCUBE = 'Infocube name'
I_OBJVERS = 'A'
I_BYPASS_BUFFER = 'X'
The numbers for the dimensions are then contained in table 'E_T_DIME', column 'NUMBRANR'. If you enter 'BID' before this number, you get the relevant number range (for example BID0000053).
You can use Transaction SNRO (-> ABAP/4 Workbench -> Development --> Other tools --> Number ranges) to display all number ranges for the dimensions used in BW if you enter BID*. You can use the object name that was determined beforehand to find the required number range.
By double-clicking this line, you get to the number range maintenance. Choose Edit -> Set-up buffering -> Main memory, to define the 'No. of numbers in buffer'.
Set this value to 500, for example. The size depends on the expected data quantity in the initial and in future (delta) uploads.

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How to improve the OpenGL performance for AE

I upgraded my display card from Nvidia 8600GT to GTX260+ hoping to have a better and smoother scrubbing of the timeline in AE. But to my disappointment, there is absolutely no improvement at all. I checked the OpenGL benchmark of the 2 cards with the Cinebench software and the results are almost the same for the 2 cards.
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juskocf wrote:
But to scrub the timeline smoothly, I think OpenGL plays an important role.
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How to improve the query performance

ALTER PROCEDURE [SPNAME]
@Portfolio INT,
@Program INT,
@Project INT
AS
BEGIN
--DECLARE @StartDate DATETIME
--DECLARE @EndDate DATETIME
--SET @StartDate = '11/01/2013'
--SET @EndDate = '02/28/2014'
IF OBJECT_ID('tempdb..#Dates') IS NOT NULL
DROP TABLE #Dates
IF OBJECT_ID('tempdb..#DailyTasks') IS NOT NULL
DROP TABLE #DailyTasks
CREATE TABLE #Dates(WorkDate DATE)
--CREATE INDEX IDX_Dates ON #Dates(WorkDate)
;WITH Dates AS
SELECT (@StartDate) DateValue
UNION ALL
SELECT DateValue + 1
FROM Dates
WHERE DateValue + 1 <= @EndDate
INSERT INTO #Dates
SELECT DateValue
FROM Dates D
LEFT JOIN tb_Holidays H
ON H.HolidayOn = D.DateValue
AND H.OfficeID = 2
WHERE DATEPART(dw,DateValue) NOT IN (1,7)
AND H.UID IS NULL
OPTION(MAXRECURSION 0)
SELECT TSK.TaskID,
TR.ResourceID,
WC.WorkDayCount,
(TSK.EstimateHrs/WC.WorkDayCount) EstimateHours,
D.WorkDate,
TSK.ProjectID,
RES.ResourceName
INTO #DailyTasks
FROM Tasks TSK
INNER JOIN TasksResource TR
ON TSK.TaskID = TR.TaskID
INNER JOIN tb_Resource RES
ON TR.ResourceID=RES.UID
OUTER APPLY (SELECT COUNT(*) WorkDayCount
FROM #Dates
WHERE WorkDate BETWEEN TSK.StartDate AND TSK.EndDate)WC
INNER JOIN #Dates D
ON WorkDate BETWEEN TSK.StartDate AND TSK.EndDate
-------WHERE TSK.ProjectID = @Project-----
SELECT D.ResourceID,
D.WorkDayCount,
SUM(D.EstimateHours/D.WorkDayCount) EstimateHours,
D.WorkDate,
T.TaskID,
D.ResourceName
FROM #DailyTasks D
OUTER APPLY (SELECT (SELECT CAST(TaskID AS VARCHAR(255))+ ','
FROM #DailyTasks DA
WHERE D.WorkDate = DA.WorkDate
AND D.ResourceID = DA.ResourceID
FOR XML PATH('')) AS TaskID) T
LEFT JOIN tb_Project PRJ
ON D.ProjectID=PRJ.UID
INNER JOIN tb_Program PR
ON PRJ.ProgramID=PR.UID
INNER JOIN tb_Portfolio PF
ON PR.PortfolioID=PF.UID
WHERE (@Portfolio = -1 or PF.UID = @Portfolio)
AND (@Program = -1 or PR.UID = @Program)
AND (@Project = -1 or PRJ.UID = @Project)
GROUP BY D.ResourceID,
D.WorkDate,
T.TaskID,
D.WorkDayCount,
D.ResourceName
HAVING SUM(D.EstimateHours/D.WorkDayCount) > 8
hi..
My SP is as above..
I connected this SP to dataset in SSRS report..as per my logic..Portfolio contains many Programs and Program contains many Projects.
When i selected the ALL value for parameters Program and Project..i'm unable to get output.
but when i select values for all 3 parameters i'm getting output. i took default values for paramters also.
so i commented the where condition in SP as shown above
--------where TSK.ProjectID=@Project-------------
now i'm getting output when selecting ALL value for parameters.
but here the issue is performance..it takes 10sec to retrieve for single project when i'm executing the sp.
how can i create index on temp table in this sp and how can i improve the query performance..
please help.
thanks in advance..
lucky

Didnt i provide you solution in other thread?
ALTER PROCEDURE [SPNAME]
@Portfolio INT,
@Program INT,
@Project INT
AS
BEGIN
--DECLARE @StartDate DATETIME
--DECLARE @EndDate DATETIME
--SET @StartDate = '11/01/2013'
--SET @EndDate = '02/28/2014'
IF OBJECT_ID('tempdb..#Dates') IS NOT NULL
DROP TABLE #Dates
IF OBJECT_ID('tempdb..#DailyTasks') IS NOT NULL
DROP TABLE #DailyTasks
CREATE TABLE #Dates(WorkDate DATE)
--CREATE INDEX IDX_Dates ON #Dates(WorkDate)
;WITH Dates AS
SELECT (@StartDate) DateValue
UNION ALL
SELECT DateValue + 1
FROM Dates
WHERE DateValue + 1 <= @EndDate
INSERT INTO #Dates
SELECT DateValue
FROM Dates D
LEFT JOIN tb_Holidays H
ON H.HolidayOn = D.DateValue
AND H.OfficeID = 2
WHERE DATEPART(dw,DateValue) NOT IN (1,7)
AND H.UID IS NULL
OPTION(MAXRECURSION 0)
SELECT TSK.TaskID,
TR.ResourceID,
WC.WorkDayCount,
(TSK.EstimateHrs/WC.WorkDayCount) EstimateHours,
D.WorkDate,
TSK.ProjectID,
RES.ResourceName
INTO #DailyTasks
FROM Tasks TSK
INNER JOIN TasksResource TR
ON TSK.TaskID = TR.TaskID
INNER JOIN tb_Resource RES
ON TR.ResourceID=RES.UID
OUTER APPLY (SELECT COUNT(*) WorkDayCount
FROM #Dates
WHERE WorkDate BETWEEN TSK.StartDate AND TSK.EndDate)WC
INNER JOIN #Dates D
ON WorkDate BETWEEN TSK.StartDate AND TSK.EndDate
WHERE (TSK.ProjectID = @Project OR @Project = -1)
SELECT D.ResourceID,
D.WorkDayCount,
SUM(D.EstimateHours/D.WorkDayCount) EstimateHours,
D.WorkDate,
T.TaskID,
D.ResourceName
FROM #DailyTasks D
OUTER APPLY (SELECT (SELECT CAST(TaskID AS VARCHAR(255))+ ','
FROM #DailyTasks DA
WHERE D.WorkDate = DA.WorkDate
AND D.ResourceID = DA.ResourceID
FOR XML PATH('')) AS TaskID) T
LEFT JOIN tb_Project PRJ
ON D.ProjectID=PRJ.UID
INNER JOIN tb_Program PR
ON PRJ.ProgramID=PR.UID
INNER JOIN tb_Portfolio PF
ON PR.PortfolioID=PF.UID
WHERE (@Portfolio = -1 or PF.UID = @Portfolio)
AND (@Program = -1 or PR.UID = @Program)
AND (@Project = -1 or PRJ.UID = @Project)
GROUP BY D.ResourceID,
D.WorkDate,
T.TaskID,
D.WorkDayCount,
D.ResourceName
HAVING SUM(D.EstimateHours/D.WorkDayCount) > 8
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

How to improve the write performance of the database

Our application is a write intense application, maybe will write 2M/second data to the database, how to improve the performance of the database? We mainly write to 5 tables of the database.
Currently, the database get no response and the CPU is 100% used.
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Your post says more by what is not provided than by what is provided. The following is the minimum list of information needed to even begin to help you.
1. What hardware (server, CPU, RAM, and NIC and HBA cards if any pointing to storage).
2. Storage solution (DAS, iSCSCI, SAN, NAS). Provide manufacturer and model.
3. If RAID which implementation of RAID and on how many disks.
4. If NAS or SAN how is the read-write cache configured.
5. What version of Oracle software ... all decimal points ... for example 11.1.0.6. If you are not fully patched then patch it and try again before asking for help.
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2 testcol varchar2(4000));
Table created.
SQL> set timing on
SQL> BEGIN
2    FOR i IN 1..500 LOOP
3      INSERT INTO t SELECT RPAD('X', 3999, 'X') FROM dual;
4    END LOOP;
5 END;
6 /
PL/SQL procedure successfully completed.
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can any body tell me how to improve the load performance

Hi,
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for master data load:
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for transactional loads:
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Hi
The following is my explain plan for sql query. (The plan is generated by Toad v9.7). How to fix the query?
SELECT STATEMENT ALL_ROWSCost: 4,160 Bytes: 25,296 Cardinality: 204
     8 NESTED LOOPS Cost: 3 Bytes: 54 Cardinality: 1
          5 NESTED LOOPS Cost: 2 Bytes: 23 Cardinality: 1
               2 TABLE ACCESS BY INDEX ROWID TABLE AR.RA_CUSTOMER_TRX_ALL Cost: 1 Bytes: 13 Cardinality: 1
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               6 INDEX UNIQUE SCAN INDEX (UNIQUE) AR.HZ_PARTIES_U1 Cost: 1 Cardinality: 1
     10 TABLE ACCESS BY INDEX ROWID TABLE AR.RA_CUSTOMER_TRX_ALL Cost: 1 Bytes: 12 Cardinality: 1
          9 INDEX UNIQUE SCAN INDEX (UNIQUE) AR.RA_CUSTOMER_TRX_U1 Cost: 1 Cardinality: 1
     15 NESTED LOOPS Cost: 2 Bytes: 29 Cardinality: 1
          12 TABLE ACCESS BY INDEX ROWID TABLE AR.RA_CUSTOMER_TRX_ALL Cost: 1 Bytes: 12 Cardinality: 1
               11 INDEX UNIQUE SCAN INDEX (UNIQUE) AR.RA_CUSTOMER_TRX_U1 Cost: 1 Cardinality: 1
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               13 INDEX RANGE SCAN INDEX (UNIQUE) ONT.OE_ORDER_HEADERS_U2 Cost: 1 Cardinality: 1
     21 FILTER
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          20 NESTED LOOPS Cost: 2 Bytes: 21 Cardinality: 1
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                    17 INDEX UNIQUE SCAN INDEX (UNIQUE) AR.RA_CUSTOMER_TRX_U1 Cost: 1 Cardinality: 1
               19 INDEX RANGE SCAN INDEX (UNIQUE) ONT.OE_ORDER_HEADERS_U2 Cost: 1 Bytes: 9 Cardinality: 1
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          22 INDEX UNIQUE SCAN INDEX (UNIQUE) AR.RA_CUSTOMER_TRX_U1 Cost: 1 Cardinality: 1
     45 NESTED LOOPS Cost: 4,160 Bytes: 25,296 Cardinality: 204
          42 NESTED LOOPS Cost: 4,150 Bytes: 23,052 Cardinality: 204
               38 NESTED LOOPS Cost: 4,140 Bytes: 19,992 Cardinality: 204
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                         30 NESTED LOOPS Cost: 3,909 Bytes: 210,843 Cardinality: 3,699
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                                        24 INDEX SKIP SCAN INDEX XLA.XLA_AE_HEADERS_N1 Cost: 264 Cardinality: 1,398,115 Partition #: 29 Partitions accessed #1 - #18
                              29 PARTITION LIST ITERATOR Cost: 1 Bytes: 34 Cardinality: 1 Partition #: 32
                                   28 TABLE ACCESS BY LOCAL INDEX ROWID TABLE XLA.XLA_AE_LINES Cost: 1 Bytes: 34 Cardinality: 1 Partition #: 32
                                        27 INDEX RANGE SCAN INDEX (UNIQUE) XLA.XLA_AE_LINES_U1 Cost: 1 Cardinality: 1 Partition #: 32
                         33 PARTITION LIST ITERATOR Cost: 1 Bytes: 25 Cardinality: 1 Partition #: 35
                              32 TABLE ACCESS BY LOCAL INDEX ROWID TABLE XLA.XLA_DISTRIBUTION_LINKS Cost: 1 Bytes: 25 Cardinality: 1 Partition #: 35
                                   31 INDEX RANGE SCAN INDEX XLA.XLA_DISTRIBUTION_LINKS_N3 Cost: 1 Cardinality: 1 Partition #: 35
                    37 PARTITION LIST SINGLE Cost: 1 Bytes: 16 Cardinality: 1 Partition #: 38
                         36 TABLE ACCESS BY LOCAL INDEX ROWID TABLE XLA.XLA_EVENTS Cost: 1 Bytes: 16 Cardinality: 1 Partition #: 39 Partitions accessed #2
                              35 INDEX UNIQUE SCAN INDEX (UNIQUE) XLA.XLA_EVENTS_U1 Cost: 1 Cardinality: 1 Partition #: 40 Partitions accessed #2
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                    40 TABLE ACCESS BY LOCAL INDEX ROWID TABLE XLA.XLA_TRANSACTION_ENTITIES Cost: 1 Bytes: 15 Cardinality: 1 Partition #: 42 Partitions accessed #2
                         39 INDEX UNIQUE SCAN INDEX (UNIQUE) XLA.XLA_TRANSACTION_ENTITIES_U1 Cost: 1 Cardinality: 1 Partition #: 43 Partitions accessed #2
          44 TABLE ACCESS BY INDEX ROWID TABLE GL.GL_CODE_COMBINATIONS Cost: 1 Bytes: 11 Cardinality: 1
               43 INDEX UNIQUE SCAN INDEX (UNIQUE) GL.GL_CODE_COMBINATIONS_U1 Cost: 1 Cardinality: 1

damorgan wrote:
Tuning is NOT about reducing the cost of i/o.
i/o is only one of many contributors to cost and only one of many contributors to waits.
Any time you would like to explore this further run this code:
SELECT 1 FROM dual
WHERE regexp_like(' ','^*[ ]*a');but not on a production box because you are going to experience an extreme tuning event with zero i/o.
And when I say "extreme" I mean "EXTREME!"
You've been warned.I think you just need a faster server.
SQL> set autotrace traceonly statistics
SQL> set timing on
SQL> select 1 from dual
2 where
3 regexp_like   (' ','^*[ ]*a');
no rows selected
Elapsed: 00:00:00.00
Statistics
          1 recursive calls
          0 db block gets
          0 consistent gets
          0 physical reads
          0 redo size
        243 bytes sent via SQL*Net to client
        349 bytes received via SQL*Net from client
          1 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
          0 rows processedRepeated from an Oracle 10.2.0.x instance:
SQL> SELECT DISTINCT SID FROM V$MYSTAT;
       SID
       310
SQL> ALTER SESSION SET EVENTS '10053 TRACE NAME CONTEXT FOREVER, LEVEL 1';
Session altered.
SQL> select 1 from dual
2 where
3 regexp_like   (' ','^*[ ]*a');The session is hung. Wait a little while and connect to the database using a different session:
COLUMN STAT_NAME FORMAT A35 TRU
SET PAGESIZE 200
SELECT
STAT_NAME,
VALUE
FROM
V$SESS_TIME_MODEL
WHERE
SID=310;
STAT_NAME                                VALUE
DB time                                   9247
DB CPU                                    9247
background elapsed time                      0
background cpu time                          0
sequence load elapsed time                   0
parse time elapsed                        6374
hard parse elapsed time                   5997
sql execute elapsed time                  2939
connection management call elapsed        1660
failed parse elapsed time                    0
failed parse (out of shared memory)          0
hard parse (sharing criteria) elaps          0
hard parse (bind mismatch) elapsed           0
PL/SQL execution elapsed time               95
inbound PL/SQL rpc elapsed time              0
PL/SQL compilation elapsed time              0
Java execution elapsed time                  0
repeated bind elapsed time                  48
RMAN cpu time (backup/restore)               0Seems to be using a bit of time for the hard parse (hard parse elapsed time). Wait a little while, then re-execute the query:
STAT_NAME                                VALUE
DB time                                   9247
DB CPU                                    9247
background elapsed time                      0
background cpu time                          0
sequence load elapsed time                   0
parse time elapsed                        6374
hard parse elapsed time                   5997
sql execute elapsed time                  2939
connection management call elapsed        1660
failed parse elapsed time                    0
failed parse (out of shared memory)          0
hard parse (sharing criteria) elaps          0
hard parse (bind mismatch) elapsed           0
PL/SQL execution elapsed time               95
inbound PL/SQL rpc elapsed time              0
PL/SQL compilation elapsed time              0
Java execution elapsed time                  0
repeated bind elapsed time                  48
RMAN cpu time (backup/restore)               0The session is not reporting additional CPU usage or parse time.
Let's check one of the session's statistics:
SELECT
SS.VALUE
FROM
V$SESSTAT SS,
V$STATNAME SN
WHERE
SN.NAME='consistent gets'
AND SN.STATISTIC#=SS.STATISTIC#
AND SS.SID=310;
     VALUE
       163Not many consistent gets after 20+ minutes.
Let's take a look at the plan:
SQL> SELECT SQL_ID,CHILD_NUMBER FROM V$SQL WHERE SQL_TEXT LIKE 'select 1 from du
al%';
SQL_ID        CHILD_NUMBER
04mpgrzhsv72w            0
SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY_CURSOR('04mpgrzhsv72w',0,'TYPICAL'))
select 1 from dual where regexp_like   (' ','^*[ ]*a')
NOTE: cannot fetch plan for SQL_ID: 04mpgrzhsv72w, CHILD_NUMBER: 0
      Please verify value of SQL_ID and CHILD_NUMBER;
      It could also be that the plan is no longer in cursor cache (check v$sql_p
lan)No plan...
Let's take a look at the 10053 trace file:
Registered qb: SEL$1 0x19157f38 (PARSER)
signature (): qb_name=SEL$1 nbfros=1 flg=0
    fro(0): flg=4 objn=258 hint_alias="DUAL"@"SEL$1"
Predicate Move-Around (PM)
PM: Considering predicate move-around in SEL$1 (#0).
PM:   Checking validity of predicate move-around in SEL$1 (#0).
CBQT: Validity checks failed for 7uqx4guu04x3g.
CVM: Considering view merge in query block SEL$1 (#0)
CBQT: Validity checks failed for 7uqx4guu04x3g.
Subquery Unnest
SU: Considering subquery unnesting in query block SEL$1 (#0)
Set-Join Conversion (SJC)
SJC: Considering set-join conversion in SEL$1 (#0).
Predicate Move-Around (PM)
PM: Considering predicate move-around in SEL$1 (#0).
PM:   Checking validity of predicate move-around in SEL$1 (#0).
PM:     PM bypassed: Outer query contains no views.
FPD: Considering simple filter push in SEL$1 (#0)
FPD:   Current where clause predicates in SEL$1 (#0) :
          REGEXP_LIKE (' ','^*[ ]*a')
kkogcp: try to generate transitive predicate from check constraints for SEL$1 (#0)
predicates with check contraints: REGEXP_LIKE (' ','^*[ ]*a')
after transitive predicate generation: REGEXP_LIKE (' ','^*[ ]*a')
finally: REGEXP_LIKE (' ','^*[ ]*a')
apadrv-start: call(in-use=592, alloc=16344), compile(in-use=37448, alloc=42256)
kkoqbc-start
            : call(in-use=592, alloc=16344), compile(in-use=38336, alloc=42256)
kkoqbc-subheap (create addr=000000001915C238)Looks like the query never had a chance to start executing - it is still parsing after 20 minutes.
I am not sure that this is a good example - the query either executes very fast, or never has a chance to start executing. But, it might still make your point physical I/O is not always the problem when performance problems are experienced.
Charles Hooper
IT Manager/Oracle DBA
K&M Machine-Fabricating, Inc.

Select Statement taking more time.How to improve the query performance.

SELECT DISTINCT ORDERKEY, SUM(IMPRESSIONCNT) AS ActualImpressions ,SUM(DiscountedSales)AS ActualRevenue ,SUM(AgencyCommAmt) as AgencyCommAmt
,SUM(SalesHouseCommAMT) as SalesHouseCommAMT
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happen on the ABAP side and result will appear on the form. First 6 or 7 user events works correctly,
the result is appearing on the form. Around 8 or 9th one, the wait symbol appears and the form is not
re-rendered. The form is of size 6 pages. The issue is not coming with form of size 1 page.
I was reading ways to improve performance during re-rendering given below.
http://www.adobe.com/devnet/livecycle/articles/DynamicInteractiveFormPerformance.pdf
It talks about wizard form design approach. But in SFP transaction, I am not seeing any kind of wizard.
Let me know if you need further details.
Thanks,
Aravind

How to Improve the performance in Variable Selection Screen.

Hi,
In Query Level we have Variable " User entry Defalt Valu". User want select particular value when he press "F4" it's take hours time how to improve the performance in Varaible Selection Screen.
Thanks in Advance.
Regards,
Venkat.

Dear Venkat.
You please try the following steps:
1. Say the InfoObject is 0EMPLOYEE against which you have created the variable, which user is trying to select value against, when they execute the report.
2. Goto RSA1-> InfoObject tab-> Select InfoObject 0EMPLOYEE.
3. Selcet the following options:
Query Execution Filter Val. Selectn - 'Only Posted Value for Navigation'
Filter Value Repr. At Query Exec. - 'Selector Box Without Values'
Please let me know if there is any more issue. Feel free to raise further concern
Thnx,
Sukdev K

How to improve the performance of one program in one select query

Hi,
I am facing performance issue in one program. I have given some part of the code of the program.
it is taking much time below select query. How to improve the performance.
Quick response is highly appreciated.
Program code
DATA: BEGIN OF t_dels_tvpod OCCURS 100,
vbeln LIKE tvpod-vbeln,
posnr LIKE tvpod-posnr,
lfimg_diff LIKE tvpod-lfimg_diff,
calcu LIKE tvpod-calcu,
podmg LIKE tvpod-podmg,
uecha LIKE lips-uecha,
pstyv LIKE lips-pstyv,
xchar LIKE lips-xchar,
grund LIKE tvpod-grund,
END OF t_dels_tvpod,
DATA: l_tabix LIKE sy-tabix,
lt_dels_tvpod LIKE t_dels_tvpod OCCURS 10 WITH HEADER LINE,
ls_dels_tvpod LIKE t_dels_tvpod.
SELECT vbeln INTO TABLE lt_dels_tvpod FROM likp
FOR ALL ENTRIES IN t_dels_tvpod
WHERE vbeln = t_dels_tvpod-vbeln
AND erdat IN s_erdat
AND bldat IN s_bldat
AND podat IN s_podat
AND ernam IN s_ernam
AND kunnr IN s_kunnr
AND vkorg IN s_vkorg
AND vstel IN s_vstel
AND lfart NOT IN r_del_types_exclude.
Waiting for quick response.
Best regards,
BDP

Bansidhar,
1) You need to add a check to make sure that internal table t_dels_tvpod (used in the FOR ALL ENTRIES clause) is not blank. If it is blank skip the SELECt statement.
2) Check the performance with and without clause 'AND lfart NOT IN r_del_types_exclude'. Sometimes NOT causes the select statement to not use the index. Instead of 'lfart NOT IN r_del_types_exclude' use 'lfart IN r_del_types_exclude' and build r_del_types_exclude by using r_del_types_exclude-sign = 'E' instead of 'I'.
3) Make sure that the table used in the FOR ALL ENTRIES clause has unique delivery numbers.
Try doing something like this.
TYPES: BEGIN OF ty_del_types_exclude,
         sign(1)   TYPE c,
         option(2) TYPE c,
         low       TYPE likp-lfart,
         high      TYPE likp-lfart,
       END OF ty_del_types_exclude.
DATA: w_del_types_exclude TYPE          ty_del_types_exclude,
      t_del_types_exclude TYPE TABLE OF ty_del_types_exclude,
      t_dels_tvpod_tmp    LIKE TABLE OF t_dels_tvpod        .
IF NOT t_dels_tvpod[] IS INITIAL.
* Assuming that I would like to exclude delivery types 'LP' and 'LPP'
CLEAR w_del_types_exclude.
REFRESH t_del_types_exclude.
w_del_types_exclude-sign = 'E'.
w_del_types_exclude-option = 'EQ'.
w_del_types_exclude-low = 'LP'.
APPEND w_del_types_exclude TO t_del_types_exclude.
w_del_types_exclude-low = 'LPP'.
APPEND w_del_types_exclude TO t_del_types_exclude.
t_dels_tvpod_tmp[] = t_dels_tvpod[].
SORT t_dels_tvpod_tmp BY vbeln.
DELETE ADJACENT DUPLICATES FROM t_dels_tvpod_tmp
    COMPARING
      vbeln.
SELECT vbeln
    FROM likp
    INTO TABLE lt_dels_tvpod
    FOR ALL ENTRIES IN t_dels_tvpod_tmp
    WHERE vbeln EQ t_dels_tvpod_tmp-vbeln
    AND erdat IN s_erdat
    AND bldat IN s_bldat
    AND podat IN s_podat
    AND ernam IN s_ernam
    AND kunnr IN s_kunnr
    AND vkorg IN s_vkorg
    AND vstel IN s_vstel
    AND lfart IN t_del_types_exclude.
ENDIF.

How Can we improve the report performance..?

Hi exports,
I am learning the Business Objects XIR2, Please let me know How Can we improve the report performance..?
Please give the answer in detailed way.

First find out why your report is performing slowly. Then fix it.
That sounds silly, but there's really no single-path process for improving report performance. You might find issues with the report. With the network. With the universe. With the database. With the database design. With the query definition. With report variables. With the ETL. Once you figure out where the problem is, then you start fixing it. Fixing one problem may very well reveal another. I spent two years working on a project where we touched every single aspect of reporting (from data collection through ETL and all the way to report delivery) at some point or another.
I feel like your question is a bit broad (meaning too generic) to address as you have phrased it. Even some of the suggestions already given...
Array fetch size - this determines the number of rows fetched at a single pass. You really don't need to modify this unless your network is giving issues. I have seen folks suggest setting this to one (which results in a lot of network requests) or 500 (which results in fewer requests but they're much MUCH larger). Does either improve performance? They might, or they might make it worse. Without understanding how your network traffic is managed it's hard to say.
Shortcut joins? Sure, they can help, as long as they are appropriate. [Many times they are not.|http://www.dagira.com/2010/05/27/everything-about-shortcut-joins/]
And I could go on and on. The bottom line is that performance tuning doesn't typically fall into a "cookie cutter" approach. It would be better to have a specific question.

How to improve the performance.

Hi All,
My question is , What and all we have to check to improve the Query performance . In our schema , all the tables are partitioned and all the tables have indexes . And the tables are not compressed , if i do table compression in my schema , will the query performance increase ? or Do i need to check any other things. Could you please share your ideas.
Thanks
Sree

Hi Sree,
all the things you mentioned, indexing, partitioning and compression, are not necessarily related to performance or can be both advantageous and deleterious to performance. Just putting them in place is no guarantee of performance.
Indexing speeds up access but slows down DML. Partitioning is used just as much (if not more) for archival management as it is for performance. Compression is used primarily for space management but has the added benefit of possibly speeding up scan type queries but can slow down DML. Just using these is no guarantee of performance, and can be a hindrance.
The normal recommendations for performance begin with database design and implementation. Design and implement your database to sound relational principles.
Design a normalised database to at least 3rd normal form.
Use appropriate data types.
Index appropriately, PK's, UK's and obvious FK's (I don't subscribe to the theory that all FK's should be indexed, but that's another argument) Err on the side of less is more.
Use primarily simple tables, unless experience indicates other storage options such as partitioning or IOT's may be useful.
Once the application starts to move beyond development then performance issues may start to become obvious, but the method here is to fix the problems. Simply implementing a feature such as partitioning across the whole database in the hope of avoiding future problems will probably be a waste of time at best and cause more issues than it solves at worst. This is not to say that performance is only considered in the last phases. Performance should be a consideration through the whole process, and can be achieved by sound and understood design, implementation and coding principles.
Once the application moves to testing and implementation phases, then you may be surprised at how few performance issues there are, and even here there is an established performance and tuning methodology for diagnosis and resolution.
There are whole books written and careers forged in the field of database performance, so it is beyond the scope of this rant to do anything more than give a broad brush stroke of the overall principles. But I hope this at least points you in the right direction.
Regards
Andre

How to improve the performance of the abap program

hi all,
I have created an abap program. And it taking long time since the number of records are more. And can anyone let me know how to improve the performance of my abap program.
Using se30 and st05 transaction.
can anyone help me out step by step
regds
haritha

Hi Haritha,
->Run Any program using SE30 (performance analysis)
Note: Click on the Tips & Tricks button from SE30 to get performance improving tips.
Using this you can improve the performance by analyzing your code part by part.
->To turn runtim analysis on within ABAP code insert the following code
SET RUN TIME ANALYZER ON.
->To turn runtim analysis off within ABAP code insert the following code
SET RUN TIME ANALYZER OFF.
->Always check the driver internal tables is not empty, while using FOR ALL ENTRIES
->Avoid for all entries in JOINS
->Try to avoid joins and use FOR ALL ENTRIES.
->Try to restrict the joins to 1 level only ie only for tables
->Avoid using Select *.
->Avoid having multiple Selects from the same table in the same object.
->Try to minimize the number of variables to save memory.
->The sequence of fields in 'where clause' must be as per primary/secondary index ( if any)
->Avoid creation of index as far as possible
->Avoid operators like <>, > , < & like % in where clause conditions
->Avoid select/select single statements in loops.
->Try to use 'binary search' in READ internal table. -->Ensure table is sorted before using BINARY SEARCH.
->Avoid using aggregate functions (SUM, MAX etc) in selects ( GROUP BY , HAVING,)
->Avoid using ORDER BY in selects
->Avoid Nested Selects
->Avoid Nested Loops of Internal Tables
->Try to use FIELD SYMBOLS.
->Try to avoid into Corresponding Fields of
->Avoid using Select Distinct, Use DELETE ADJACENT
Check the following Links
Re: performance tuning
Re: Performance tuning of program
http://www.sapgenie.com/abap/performance.htm
http://www.thespot4sap.com/Articles/SAPABAPPerformanceTuning_PerformanceAnalysisTools.asp
check the below link
http://www.sap-img.com/abap/performance-tuning-for-data-selection-statement.htm
See the following link if it's any help:
http://www.thespot4sap.com/Articles/SAPABAPPerformanceTuning_PerformanceAnalysisTools.asp
Check also http://service.sap.com/performance
and
books like
http://www.sap-press.com/product.cfm?account=&product=H951
http://www.sap-press.com/product.cfm?account=&product=H973
http://www.sap-img.com/abap/more-than-100-abap-interview-faqs.htm
http://www.thespot4sap.com/Articles/SAPABAPPerformanceTuning_PerformanceAnalysisTools.asp
Performance tuning for Data Selection Statement
http://www.sap-img.com/abap/performance-tuning-for-data-selection-statement.htm
Debugger
http://help.sap.com/saphelp_47x200/helpdata/en/c6/617ca9e68c11d2b2ab080009b43351/content.htm
http://www.cba.nau.edu/haney-j/CIS497/Assignments/Debugging.doc
http://help.sap.com/saphelp_erp2005/helpdata/en/b3/d322540c3beb4ba53795784eebb680/frameset.htm
Run Time Analyser
http://help.sap.com/saphelp_47x200/helpdata/en/c6/617cafe68c11d2b2ab080009b43351/content.htm
SQL trace
http://help.sap.com/saphelp_47x200/helpdata/en/d1/801f7c454211d189710000e8322d00/content.htm
CATT - Computer Aided Testing Too
http://help.sap.com/saphelp_47x200/helpdata/en/b3/410b37233f7c6fe10000009b38f936/frameset.htm
Test Workbench
http://help.sap.com/saphelp_47x200/helpdata/en/a8/157235d0fa8742e10000009b38f889/frameset.htm
Coverage Analyser
http://help.sap.com/saphelp_47x200/helpdata/en/c7/af9a79061a11d4b3d4080009b43351/content.htm
Runtime Monitor
http://help.sap.com/saphelp_47x200/helpdata/en/b5/fa121cc15911d5993d00508b6b8b11/content.htm
Memory Inspector
http://help.sap.com/saphelp_47x200/helpdata/en/a2/e5fc84cc87964cb2c29f584152d74e/content.htm
ECATT - Extended Computer Aided testing tool.
http://help.sap.com/saphelp_47x200/helpdata/en/20/e81c3b84e65e7be10000000a11402f/frameset.htm
Just refer to these links...
performance
Performance
Performance Guide
performance issues...
Performance Tuning
Performance issues
performance tuning
performance tuning
You can go to the transaction SE30 to have the runtime analysis of your program.Also try the transaction SCI , which is SAP Code Inspector.
edited by,
Naveenan

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