Performance Problem while Aggregation

Performance problem while aggrgating
These r my dimension and cube i wrote customized Aggrgation map and i m aggragating all dimension (except for last level a unique one (PK) + cube .
My system config is good ..
But Aggrgation deployment (calculation ) is really really very slow compared to other vendors product
i.e. It took me 3 hours to aggrgate all dimension (all levels except last) and cube (only containing 1000 rows to check and deleted all others rows)
Dimensions Number of rows
dim_product 156,0
t_time 730
dim_promotion 186,4
dim_store 25
dim_distributor 102,81
Cube Number of Row
Cube_SalesFact 300,000
Plz solve my problem coz if it take that much time then i must say the performance of software is not that good where it should be....
and i must suggest oracle to do some thing about this serious problem
Thanks
Well wisher of Oracle Corporation

BEGIN
cwm2_olap_manager.set_echo_on;
CWM2_OLAP_MANAGER.BEGIN_LOG('D:\', 'AggMap_CubeSalesfact.log');
DBMS_AW.EXECUTE('aw attach RTTARGET.AW_WH_SALES RW' );
BEGIN
DBMS_AWM.DELETE_AWDIMLOAD_SPEC('DIM_DISTRIBUTOR', 'RTTARGET', 'DIM_DISTRIBUTOR');
DBMS_AWM.DELETE_AWDIMLOAD_SPEC('DIM_PRODUCT', 'RTTARGET', 'DIM_PRODUCT');
DBMS_AWM.DELETE_AWDIMLOAD_SPEC('DIM_PROMOTION', 'RTTARGET', 'DIM_PROMOTION');
DBMS_AWM.DELETE_AWDIMLOAD_SPEC('DIM_STORE', 'RTTARGET', 'DIM_STORE');
DBMS_AWM.DELETE_AWDIMLOAD_SPEC('T_TIME', 'RTTARGET', 'T_TIME');
--Deleting AW_CubeLoad_Spec
DBMS_AWM.DELETE_AWCUBELOAD_SPEC('CUBESALESFACT', 'RTTARGET', 'CUBE_SALESFACT');
DBMS_AW.EXECUTE('upd '||'RTTARGET'||'.'||'AW_WH_SALES' ||'; commit');
Commit;
--Deleting AggMap
DBMS_AWM.Delete_AWCUBEAGG_SPEC('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT');
DBMS_AW.EXECUTE('upd '||'RTTARGET'||'.'||'AW_WH_SALES' ||'; commit');
Commit;
EXCEPTION WHEN OTHERS THEN NULL;
END;
--Creating Agg Map for cube cube_salesfact
-- DBMS_AWM.CREATE_AWCUBEAGG_SPEC(AggMap_Name , USER , AW_NAME, CUBE_NAME);
DBMS_AWM.CREATE_AWCUBEAGG_SPEC('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT');
--Specifying aggrgation for measures of cube
DBMS_AWM.ADD_AWCUBEAGG_SPEC_MEASURE('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'STORECOST');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_MEASURE('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'STORESALES');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_MEASURE('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'UNITSALES');
--Specifying aggrgation for different level of dimensions
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_T_TIME', 'L_ALLYEARS');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_T_TIME', 'L_YEAR');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_T_TIME', 'L_QUARTER');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_T_TIME', 'L_MONTH');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_STORE', 'L_ALLCOUNTRIES');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_STORE', 'L_COUNTRY');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_STORE', 'L_PROVINCE');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_STORE', 'L_CITY');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_PRODUCT', 'L_ALLPRODUCTS');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_PRODUCT', 'L_BRANDCLASS');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_PRODUCT', 'L_BRANDCATEGORY');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_PRODUCT', 'L_BRAND');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_DISTRIBUTOR', 'L_ALLDIST');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_DISTRIBUTOR', 'L_DISTINCOME');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_PROMOTION', 'L_ALLPROM');
DBMS_AWM.ADD_AWCUBEAGG_SPEC_LEVEL('AGG_CUBESALESFACT', 'RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'WH_DIM_PROMOTION', 'L_PROMOTIONMEDIA');
Begin
--************************ CODE **********************************
--aw_dim.sql
DBMS_AWM.CREATE_AWDIMLOAD_SPEC('DIM_DISTRIBUTOR', 'RTTARGET', 'DIM_DISTRIBUTOR', 'FULL_LOAD_ADDITIONS_ONLY');
DBMS_AWM.REFRESH_AWDIMENSION('RTTARGET', 'AW_WH_SALES', 'WH_DIM_DISTRIBUTOR', 'DIM_DISTRIBUTOR');
commit;
DBMS_AWM.CREATE_AWDIMLOAD_SPEC('DIM_PRODUCT', 'RTTARGET', 'DIM_PRODUCT', 'FULL_LOAD_ADDITIONS_ONLY');
DBMS_AWM.REFRESH_AWDIMENSION('RTTARGET', 'AW_WH_SALES', 'WH_DIM_PRODUCT', 'DIM_PRODUCT');
commit;
DBMS_AWM.CREATE_AWDIMLOAD_SPEC('DIM_PROMOTION', 'RTTARGET', 'DIM_PROMOTION', 'FULL_LOAD_ADDITIONS_ONLY');
DBMS_AWM.REFRESH_AWDIMENSION('RTTARGET', 'AW_WH_SALES', 'WH_DIM_PROMOTION', 'DIM_PROMOTION');
commit;
DBMS_AWM.CREATE_AWDIMLOAD_SPEC('DIM_STORE', 'RTTARGET', 'DIM_STORE', 'FULL_LOAD_ADDITIONS_ONLY');
DBMS_AWM.REFRESH_AWDIMENSION('RTTARGET', 'AW_WH_SALES', 'WH_DIM_STORE', 'DIM_STORE');
commit;
DBMS_AWM.CREATE_AWDIMLOAD_SPEC('T_TIME', 'RTTARGET', 'T_TIME', 'FULL_LOAD_ADDITIONS_ONLY');
DBMS_AWM.REFRESH_AWDIMENSION('RTTARGET', 'AW_WH_SALES', 'WH_T_TIME', 'T_TIME');
commit;
--aw_cube.sql
DBMS_AWM.CREATE_AWCUBELOAD_SPEC('CUBE_SALESFACT', 'RTTARGET', 'CUBE_SALESFACT', 'LOAD_DATA');
dbms_awm.add_awcubeload_spec_measure('CUBE_SALESFACT', 'RTTARGET', 'CUBE_SALESFACT', 'STORECOST', 'STORECOST', 'STORECOST');
dbms_awm.add_awcubeload_spec_measure('CUBE_SALESFACT', 'RTTARGET', 'CUBE_SALESFACT', 'STORESALES', 'STORESALES', 'STORESALES');
dbms_awm.add_awcubeload_spec_measure('CUBE_SALESFACT', 'RTTARGET', 'CUBE_SALESFACT', 'UNITSALES', 'UNITSALES', 'UNITSALES');
DBMS_AWM.REFRESH_AWCUBE('RTTARGET', 'AW_WH_SALES', 'WH_CUBE_SALESFACT', 'CUBE_SALESFACT');
EXCEPTION WHEN OTHERS THEN NULL;
END;
-- Now build the cube. This may take some time on large cubes.
-- DBMS_AWM.aggregate_awcube(USER, AW_NAME, CUBE_NAME, aggspec);
DBMS_AWM.aggregate_awcube('RTTARGET','AW_WH_SALES', 'WH_CUBE_SALESFACT','AGG_CUBESALESFACT');
DBMS_AW.EXECUTE('upd '||'RTTARGET'||'.'||'AW_WH_SALES' ||'; commit');
Commit;
CWM2_OLAP_METADATA_REFRESH.MR_REFRESH();
CWM2_OLAP_METADATA_REFRESH.MR_AC_REFRESH();
DBMS_AW.Execute('aw detach RTTARGET.AW_WH_Sales');
CWM2_OLAP_MANAGER.END_LOG;
cwm2_olap_manager.set_echo_off;
EXCEPTION WHEN OTHERS THEN NULL;
-- EXCEPTION WHEN OTHERS THEN RAISE;
END;

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Hi Experts,
I have a report performance problem while fetching BELNR from BSEG table.
I have to print latest BELNR from BSEG where BUZID = M but at the time of execution of report, It is taking too much time (More that hour and sometimes it gets hanged).
I have also gone through the comments provided by experts for previous problems asked in this forum e.g. BSEG is a cluster table that is why data retrieval takes long time etc.
Can any one has any other idea or suggestion or any other way to solve this problem
Regards,
Neeraj

Hi,
1) Try to create an index on BUZID field
2) Don't use SELECT/ENDSELECT statement. Instead of that extract all the concerned entries from BSEG into an internal table :
select belnr from bseg appending table itab where buzid = 'M'.
then do this :
sort itab by belnr.
describe itab lines n.
read table itab index n.
Please reward if helpful.
Regards,
Nicolas.

Performance problems with 0EC_PCA_3 datasource

Hi experts,
We have recently upgraded the Business Content in our BW system, as well as the plug-in on R/3 side. Now we have BC3.3 and PI2004.1. Given the opportunity, we decided to apply the new 0EC_PCA_3 and 0EC_PCA_4 datasources that provide more detailed data from table GLPCA.
The new datasources have been activated and transported to the QA system, where we experience serious performance problems while extracting data from R/3. All other data extractions work as before so there should not be any problem with the hardware.
Do you use 0EC_PCA_3? Have you experienced any problem with the speed of data extraction/transfer? We already have applied the changes suggested in note 597909 (Performance of FI-SL line item extractors: Creating indexes) and created secondary indexes on GLPCA table but it did not help.
thanks and regards,
Csaba

Seems the problem was caused by a custom development - quantity conversion in user exit. However, we tried loading earlier after removal of the exit, it did not help then (loading took even longer...). Now it did.

Performance problem with selecting records from BSEG and KONV

Hi,
I am having performance problem while selecting records from BSEG and KONV table. As these two tables have large amount of data , they are taking lot of time . Can anyone help me in improving the performance . Thanks in advance .
Regards,
Prashant

Hi,
Some steps to improve performance
SOME STEPS USED TO IMPROVE UR PERFORMANCE:
1. Avoid using SELECT...ENDSELECT... construct and use SELECT ... INTO TABLE.
2. Use WHERE clause in your SELECT statement to restrict the volume of data retrieved.
3. Design your Query to Use as much index fields as possible from left to right in your WHERE statement
4. Use FOR ALL ENTRIES in your SELECT statement to retrieve the matching records at one shot.
5. Avoid using nested SELECT statement SELECT within LOOPs.
6. Avoid using INTO CORRESPONDING FIELDS OF TABLE. Instead use INTO TABLE.
7. Avoid using SELECT * and Select only the required fields from the table.
8. Avoid nested loops when working with large internal tables.
9. Use assign instead of into in LOOPs for table types with large work areas
10. When in doubt call transaction SE30 and use the examples and check your code
11. Whenever using READ TABLE use BINARY SEARCH addition to speed up the search. Be sure to sort the internal table before binary search. This is a general thumb rule but typically if you are sure that the data in internal table is less than 200 entries you need not do SORT and use BINARY SEARCH since this is an overhead in performance.
12. Use "CHECK" instead of IF/ENDIF whenever possible.
13. Use "CASE" instead of IF/ENDIF whenever possible.
14. Use "MOVE" with individual variable/field moves instead of "MOVE-
CORRESPONDING" creates more coding but is more effcient.

JDBC performance problem with Blob

Hi,
I've some performance problem while inserting Blob in an Oracle
8i database. I'm using JVM 1.17 on HP-UX 11.0 with Oracle thin
client
The table I used contains only two columns : an integer (the
primary key) and a blob.
First I insert a row in the table with an empty_blob()
Then I select back this row to get the blob
and finally I fill in the blob with the data.
But it takes an average 4.5 seconds to insert a blob of 47 Kb.
Am I doing something wrong?
Any suggestion or hint will be welcome.
Thanks in advance
Didier
null

Don S. (guest) wrote:
: Didier Derck (guest) wrote:
: : Hi,
: : I've some performance problem while inserting Blob in an
Oracle
: : 8i database. I'm using JVM 1.17 on HP-UX 11.0 with Oracle
thin
: : client
: : The table I used contains only two columns : an integer (the
: : primary key) and a blob.
: : First I insert a row in the table with an empty_blob()
: : Then I select back this row to get the blob
: : and finally I fill in the blob with the data.
: : But it takes an average 4.5 seconds to insert a blob of 47
Kb.
: : Am I doing something wrong?
: : Any suggestion or hint will be welcome.
: : Thanks in advance
: : Didier
: In our testing if you use blob.putBytes() you will get better
: performance. The draw back we found was the 32k limit we ran
in
: to. We had to chunk things larger than that and make calls to
: the append method. I was dissappointed in Oracle's phone
support
: on what causes the 32k limit. In addition the getBytes() for
: retrieve doesn't seem to work. You'll have to use the
: InputStream for that. Oh, and FYI. We ran into a 2k limit on
: putChars() for CLOB's.
the thin drivers currently use the package "dbms_lob" behind the
scenes while the jdbc oci 815 drivers and higher uses the native
oci calls which makes them much faster.
there also is a 32k limit on pl/sql stored procedures/functions
for parms.
you may have run into that.
null

Performance issues while opening business rule

Hi,
we're working with Hyperion version 9.2.1 and we're having some performance problems while opening business rules. I analyzed the issue and found out that it has something to do with assigning access privileges to the rule.
The authorization plan looks as followed:
User A is assigned to group G1
User B is assigned to group G2
Group G1 ist assigned to Group XYZ
Group G2 ist assigned to Group XYZ
Group XYZ holds the provision "basic user" for the planning application.
Without assigning any access priviliege the business rule opens immediately.
By assigning access privilege to group G1/G2 (validate or launch) the business rule opens immediately.
By assigning access privilege to group XYZ the business rule opens after 2-5 minutes.
Has anyone an idea why this happens and how to solve this?
Kind regards
Uli
Edited by: user13110201 on 12.05.2010 04:31

This has been an issue with Business Rules for quite awhile. Oracle has made steps both forward and backward in later releases than yours; and they've issued patches addressing, if not completely resolving, the problem. Things finally seem to be much better in 11.1.1.3, although YMMV.

A017 performance Problem

Hi all
I am facing performance problem, While selecting field 'DATAB' ( Validity start date of the condition record ) from Pooled table 'A017',I am getting timed out error ( slong ).IS there any efficient way to retrieve data.
Regards
Sreenivasa Reddy

Hi,
follow below condition to improve performance
1) Remove * from select
2) Select field in sequence as defined in database
3) Avoid unnecessary selects
i.e check for internal table not initial
4) Use all entries and sort table by key fields
5) Remove selects ferom loop and use binary search
6) Try to use secondary index when you don't have
full key.
7) Modify internal table use transporting option
8) Avoid nested loop . Use read table and loop at itab
from sy-tabix statement.
9) free intrenal table memory wnen table is not
required for further processing.
10)
Follow below logic.
FORM SUB_SELECTION_AUFKTAB.
if not it_plant[] is initial.
it_plant1[] = it_plant[].
sort it_plant1 by werks.
delete adjacent duplicates from it_plant1 comparing werks
SELECT AUFNR KTEXT USER4 OBJNR INTO CORRESPONDING FIELDS OF TABLE
I_AUFKTAB
FROM AUFK
FOR ALL ENTRIES IN it_plant1
WHERE AUFNR IN S_AUFNR AND
KTEXT IN S_KTEXT AND
WERKS IN S_WERKS AND
AUART IN S_AUART AND
USER4 IN S_USER4 AND
werks eq it_plant1-werks.
free it_plant1.
Endif.
ENDFORM. "SUB_SELECTION_AUFKTAB
Regards
Amole

Facing a major problem while performing restoration of my mssql DB

Dear Experts,
I am facing a major problem while performing restoration of my mssql DB. The situation is like
1. I have successfully take full and transactional log backup in a external device using MSSQL Server Managemnt Studio.
Backup was successfully completed as per MSSQL Server Managemnt Studio message.
2. Try to restore the same using MSSQL Server Managemnt Studio. It is showing the following error
System.Data.SqlClient.SqlError: RESTORE cannot process database <DB_SID> because
it is in use by this session. It is recommended that the master database be used when
performing this operation.
I have followed the guidelines specified in the link
[SAP Help Link for Restoring the <SAPSID> Backup from a Device |http://help.sap.com/saphelp_nw70/helpdata/en/f2/31ad56810c11d288ec0000e8200722/frameset.htm]
But everytime I am getting the same error message. I have checked with all options but there
was no resolutions. Kindly advise me in this regard.
Thanks and Regards,
Partha

http://social.msdn.microsoft.com/Forums/en-CA/sqltools/thread/37ee8e24-7aaa-472b-861a-fc0cc513338a
hope it helps

Problem while Fetching BSAD

Hi to all ,
I' ve problem while fetching bsad for a report , in t-code se30 i've seen that it takes %89,1 performance of overall.
SELECT belnr buzei dmbtr blart budat augdt augbl sgtxt
   into table odemelerg
          FROM bsad
          WHERE bukrs EQ bukrs
            AND kunnr EQ kunnr
            AND ( umsks EQ space OR umsks IS NULL )
            AND ( umskz EQ space OR umskz IS NULL )
            AND augbl EQ i_augbl
            AND augdt GE i_budat
            AND gjahr EQ gjahr
            AND belnr NE i_belnr
            AND bsadbelnr NE bsadaugbl
            AND ( blart EQ blart_bt OR blart EQ blart_hf
                  OR blart EQ blart_mi ).
here : blart_bt is declared as a constant type and its value is 'BT'. such as blart_hf, blart_mi
How can I make this Select query working in a better performance
Kind regards,
Caglar

Hi
If you know the bill number:
-1) Search FI document:
Get header data
select * from bkpf where AWTYP = 'VBRK'
                     and AWKEY = BILL NUMBER.
EXIT.
ENDSELECT.
Get items data
SELECT * FROM BSEG INTO TABLE T_BSEG
                       WHERE BUKRS = BKPF-BUKRS
                         AND BELNR = BKPF-BELNR
                         AND GJAHR = BKPF-GJAHR
                         AND KOART = 'D'.
Payment:
LOOP AT T_BSEG WHERE AUGDT <> '00000000'.
IF T_BSEG-AUGBL <> _BKPF-BELNR
    T_BSEG-AUGDT <> _BKPF-BUDAT.
SELECT * FROM BKPF INTO _BKPF
                    WHERE BUKRS = T_BSEG-BUKRS
                      AND BELNR = T_BSEG-AUGBL
                      AND BUDAT = T_BSEG-AUGDT.
   EXIT.
ENDSELECT.
SELECT * FROM BSEG APPENDING TABLE T_PAYMENT
                       WHERE BUKRS = _BKPF-BUKRS
                         AND BELNR = _BKPF-BELNR
                         AND GJAHR = _BKPF-GJAHR
                         AND KOART = 'D'.
ENDIF.
ENDLOOP.
Partial payment
SELECT * FROM BSAD INTO TABLE WHERE BUKRS = BKPF-BUKRS
                                AND KUNNR = T_BSEG-KUNNR
                                AND REBZG = BKPF-BELNR
                                AND REBZJ = BKPF-GJAHR.
Max

Performance problem in Zstick report...

Hi Experts,
I am facing performance problem in Custoom Stock report of Material Management.
In this report i am fetching all the materials with its batches to get the desired output, at a time this report executes 36,000 plus unique combination of material and batch.
This report takes around 30 mins to execute. And this report is to be viewed regularly in every 2 hours.
To read the batch characteristics value I am using FM -> '/SAPMP/CE1_BATCH_GET_DETAIL'
Is there any way out to increase the performance of this report, the output of the report is in ALV.
May i have any refresh button in the report so that data may get refreshed automatically without executing it again. or is there any cache memory concept.
Note: I have declared all the itabs with type sorted, all the select queries are fetched with key and index.
Thanks
Rohit Gharwar

Hello,
SE30 is old. Switch on trace on ST12 while running this progarm and identify where exactly most of the time is being spent. If you see high CPU time this problem with the ABAP code. You can exactly figure out the program/function module from ST12 trace where exactly time is being spent. If you see high database time in ST12, problem is with database related issue. So basically you have to analyze sql statement from performance traces in ST12. These could resolve your issue.
Yours Sincerely
Dileep

Performance Problem while Aggregation

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