CLEARBLOCK EMPTY is taking 3 times as long as it used to
Would anyone happen to know why my CLEARBLOCK EMPTY script that runs once a week would be clearing less blocks but taking 3 times as long as it used to?
Any help would be appreciated.
3. Other processes running on the server^^^Just a variation of this that I recently experienced -- other processes running on the SAN/the SAN running out of room. A virtualized hard drive is exciting, as you have no way of knowing what's really going on -- everything looks good from the Windows side of things, but in reality the performance of the hard drive is falling through the floor.
I had a calculation that took 1.1 seconds take over four minutes. And then immediately on rerun, went right back to 1.1 seconds. That is one seriously busy hard drive and completely invisible to the server OS.
Regards,
Cameron Lackpour
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ITunes 7.0 Upgrade -taking 3 times as long and never completes download
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I downloaded iTunes 7.0 so I could get new shows since iTunes requires it AND was very dissapointed when I purchased the items and then had to choose "check for purchases" to have them downloaded again. I don't know if it's b/c I purchased 6 shows before doing the "check for purchases" or what. SOOO...I uninstalled 7.0 and reinstalled the previous version, but now I still want the shows on the 7.0 version. HELP!!
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Can u tell me what is the version of the analyzer ? Is it 2007 .
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http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/60bc017e-865a-2d10-0b86-9d42a5582b75?QuickLink=index&overridelayout=true
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Oracle 11g: Oracle insert/update operation is taking more time.
Hello All,
In Oracle 11g (Windows 2008 32 bit environment) we are facing following issue.
1) We are inserting/updating data on some tables (4-5 tables and we are firing query with very high rate).
2) After sometime (say 15 days with same load) we are feeling that the Oracle operation (insert/update) is taking more time.
Query1: How to find actually oracle is taking more time in insert/updates operation.
Query2: How to rectify the problem.
We are having multithread environment.
Thanks
With Regards
Hemant.Liron Amitzi wrote:
Hi Nicolas,
Just a short explanation:
If you have a table with 1 column (let's say a number). The table is empty and you have an index on the column.
When you insert a row, the value of the column will be inserted to the index. To insert 1 value to an index with 10 values in it will be fast. It will take longer to insert 1 value to an index with 1 million values in it.
My second example was if I take the same table and let's say I insert 10 rows and delete the previous 10 from the table. I always have 10 rows in the table so the index should be small. But this is not correct. If I insert values 1-10 and then delete 1-10 and insert 11-20, then delete 11-20 and insert 21-30 and so on, because the index is sorted, where 1-10 were stored I'll now have empty spots. Oracle will not fill them up. So the index will become larger and larger as I insert more rows (even though I delete the old ones).
The solution here is simply revuild the index once in a while.
Hope it is clear.
Liron Amitzi
Senior DBA consultant
[www.dbsnaps.com]
[www.orbiumsoftware.com]Hmmm, index space not reused ? Index rebuild once a while ? That was what I understood from your previous post, but nothing is less sure.
This is a misconception of how indexes are working.
I would suggest the reading of the following interasting doc, they are a lot of nice examples (including index space reuse) to understand, and in conclusion :
http://richardfoote.files.wordpress.com/2007/12/index-internals-rebuilding-the-truth.pdf
"+Index Rebuild Summary+
+•*The vast majority of indexes do not require rebuilding*+
+•Oracle B-tree indexes can become “unbalanced” and need to be rebuilt is a myth+
+•*Deleted space in an index is “deadwood” and over time requires the index to be rebuilt is a myth*+
+•If an index reaches “x” number of levels, it becomes inefficient and requires the index to be rebuilt is a myth+
+•If an index has a poor clustering factor, the index needs to be rebuilt is a myth+
+•To improve performance, indexes need to be regularly rebuilt is a myth+"
Good reading,
Nicolas. -
CDP Performance Issue-- Taking more time fetch data
Hi,
I'm working on Stellent 7.5.1.
For one of the portlet in portal its taking more time to fetch data. Please can some one help me to solve this issue.. So that performance can be improved.. Please kindly provide me solution.. This is my code for fetching data from the server....
public void getManager(final HashMap binderMap)
throws VistaInvalidInputException, VistaDataNotFoundException,
DataException, ServiceException, VistaTemplateException
String collectionID =
getStringLocal(VistaFolderConstants.FOLDER_ID_KEY);
long firstStartTime = System.currentTimeMillis();
HashMap resultSetMap = null;
String isNonRecursive = getStringLocal(VistaFolderConstants
.ISNONRECURSIVE_KEY);
if (isNonRecursive != null
&& isNonRecursive.equalsIgnoreCase(
VistaContentFetchHelperConstants.STRING_TRUE))
VistaLibraryContentFetchManager libraryContentFetchManager =
new VistaLibraryContentFetchManager(
binderMap);
SystemUtils.trace(
VistaContentFetchHelperConstants.CONTENT_FETCH_TRACE,
"The input Parameters for Content Fetch = "
+ binderMap);
resultSetMap = libraryContentFetchManager
.getFolderContentItems(m_workspace);
* used to add the resultset to the binder.
addResultSetToBinder(resultSetMap , true);
else
long startTime = System.currentTimeMillis();
* isStandard is used to decide the call is for Standard or
* Extended.
SystemUtils.trace(
VistaContentFetchHelperConstants.CONTENT_FETCH_TRACE,
"The input Parameters for Content Fetch = "
+ binderMap);
String isStandard = getTemplateInformation(binderMap);
long endTimeTemplate = System.currentTimeMillis();
binderMap.put(VistaFolderConstants.IS_STANDARD,
isStandard);
long endTimebinderMap = System.currentTimeMillis();
VistaContentFetchManager contentFetchManager
= new VistaContentFetchManager(binderMap);
long endTimeFetchManager = System.currentTimeMillis();
resultSetMap = contentFetchManager
.getAllFolderContentItems(m_workspace);
long endTimeresultSetMap = System.currentTimeMillis();
* used to add the resultset and the total no of content items
* to the binder.
addResultSetToBinder(resultSetMap , false);
long endTime = System.currentTimeMillis();
if (perfLogEnable.equalsIgnoreCase("true"))
Log.info("Time taken to execute " +
"getTemplateInformation=" +
(endTimeTemplate - startTime)+
"ms binderMap=" +
(endTimebinderMap - startTime)+
"ms contentFetchManager=" +
(endTimeFetchManager - startTime)+
"ms resultSetMap=" +
(endTimeresultSetMap - startTime) +
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(endTime - startTime) +
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(endTime - firstStartTime) +
"ms folderID =" +
collectionID);
Edited by: 838623 on Feb 22, 2011 1:43 AMHi.
The Select statment accessing MSEG Table is Slow Many a times.
To Improve the performance of MSEG.
1.Check for the proper notes in the Service Market Place if you are working for CIN version.
2.Index the MSEG table
2.Check and limit the Columns in the Select statment .
Possible Way.
SELECT MBLNR MJAHR ZEILE BWART MATNR WERKS LIFNR MENGE MEINS
EBELN EBELP LGORT SMBLN BUKRS GSBER INSMK XAUTO
FROM MSEG
INTO CORRESPONDING FIELDS OF TABLE ITAB
WHERE WERKS EQ P_WERKS AND
MBLNR IN S_MBLNR AND
BWART EQ '105' .
Delete itab where itab EQ '5002361303'
Delete itab where itab EQ '5003501080'
Delete itab where itab EQ '5002996300'
Delete itab where itab EQ '5002996407'
Delete itab where itab EQ '5003587026'
Delete itab where itab EQ '5003587026'
Delete itab where itab EQ '5003493186'
Delete itab where itab EQ '5002720583'
Delete itab where itab EQ '5002928122'
Delete itab where itab EQ '5002628263'.
Select
Regards
Bala.M
Edited by: Bala Malvatu on Feb 7, 2008 9:18 PM -
Database tableAUFM hitting is taking much time even secondary index created
Hi Friends,
There is report for Goods movement rel. to Service orders + Acc.indicator.
We have two testing Systems(EBQ for developer and PEQ from client side).
EBQ system contains replica of PEQ every month.
This report is not taking much time in EBQ.But it is taking much time in PEQ.For the selection criteria I have given,both systems have same data(Getting same output).
The report has the follwoing fields on the selection criteria:
A_MJAHR Material Doc. Year (Mandatory)
S_BLDAT Document Date(Optional)
S_BUDAT Posting Date(Optional)
S_LGORT Storage Location(Optional)
S_MATNR Material(Optional)
S_MBLNR Material Documen(Optional)t
S_WERKS Plant(Optional)
Client not agrrying to make Material Documen as Mandatory.
The main (first) table hit is on AUFM table .As there are non-key fileds as well in where condition,We have cretaed a secondary index as well for AUFM table on the following fields:
BLDAT
BUDAT
MATNR
WERKS
LGORT
Even then also ,in PEQ sytem the report is taking very long time ,Some times not even getting the ALV output.
What can be done to get teh report executed very fast.
<removed by moderator>
The part of report Soure code is as below:
<long code part removed by moderator>
Thanks and Regards,
Rama chary.P
Moderator message: please stay within the 2500 character limit to preserve formatting, only post relevant portions of the code, also please read the following sticky thread before posting.
Please Read before Posting in the Performance and Tuning Forum
locked by: Thomas Zloch on Sep 15, 2010 11:40 AMHi Friends,
There is report for Goods movement rel. to Service orders + Acc.indicator.
We have two testing Systems(EBQ for developer and PEQ from client side).
EBQ system contains replica of PEQ every month.
This report is not taking much time in EBQ.But it is taking much time in PEQ.For the selection criteria I have given,both systems have same data(Getting same output).
The report has the follwoing fields on the selection criteria:
A_MJAHR Material Doc. Year (Mandatory)
S_BLDAT Document Date(Optional)
S_BUDAT Posting Date(Optional)
S_LGORT Storage Location(Optional)
S_MATNR Material(Optional)
S_MBLNR Material Documen(Optional)t
S_WERKS Plant(Optional)
Client not agrrying to make Material Documen as Mandatory.
The main (first) table hit is on AUFM table .As there are non-key fileds as well in where condition,We have cretaed a secondary index as well for AUFM table on the following fields:
BLDAT
BUDAT
MATNR
WERKS
LGORT
Even then also ,in PEQ sytem the report is taking very long time ,Some times not even getting the ALV output.
What can be done to get teh report executed very fast.
<removed by moderator>
The part of report Soure code is as below:
<long code part removed by moderator>
Thanks and Regards,
Rama chary.P
Moderator message: please stay within the 2500 character limit to preserve formatting, only post relevant portions of the code, also please read the following sticky thread before posting.
Please Read before Posting in the Performance and Tuning Forum
locked by: Thomas Zloch on Sep 15, 2010 11:40 AM -
Hi all,
db:oracle 9i
I am facing below query prob.
prob is that query is taking more time 45 min than earliar (10 sec).
please any one suggest me .....
SQL> SELECT MAX (tdar1.ID) ID, tdar1.request_id, tdar1.lolm_transaction_id,
2 tdar1.transaction_version
3 FROM transaction_data_arc tdar1
4 WHERE tdar1.transaction_name ='O96U '
5 AND tdar1.transaction_type = 'REQUEST'
6 AND tdar1.message_type_code ='PCN'
7 AND NOT EXISTS (
8 SELECT NULL
9 FROM transaction_data_arc tdar2
10 WHERE tdar2.request_id = tdar1.request_id
11 AND tdar2.lolm_transaction_id != tdar1.lolm_transaction_id
12 AND tdar2.ID > tdar1.ID)
13 GROUP BY tdar1.request_id,
14 tdar1.lolm_transaction_id,
15 tdar1.transaction_version;
Execution Plan
0 SELECT STATEMENT Optimizer=CHOOSE (Cost=17 Card=1 Bytes=42)
1 0 SORT (GROUP BY) (Cost=12 Card=1 Bytes=42)
2 1 FILTER
3 2 TABLE ACCESS (BY INDEX ROWID) OF 'TRANSACTION_DATA_ARC
' (Cost=1 Card=1 Bytes=42)
4 3 INDEX (RANGE SCAN) OF 'NK_TDAR_2' (NON-UNIQUE) (Cost
=3 Card=1)
5 2 TABLE ACCESS (BY INDEX ROWID) OF 'TRANSACTION_DATA_ARC
' (Cost=5 Card=918 Bytes=20196)
6 5 INDEX (RANGE SCAN) OF 'NK_TDAR_7' (NON-UNIQUE) (Cost
=8 Card=4760)prob is that query is taking more time 45 min than earliar (10 sec).Then something must have changed (data growth/stale statistics/...?).
You should post as much details as possible, how and what it is described in the FAQ, see:
*3. How to improve the performance of my query? / My query is running slow*.
When your query takes too long...
How to post a SQL statement tuning request
SQL and PL/SQL FAQ
Also, given your database version, using NOT IN instead of NOT EXISTS might make a difference (but they're not the same).
See: SQL and PL/SQL FAQ -
Query accessing SSAS cube is taking more time in power view report
Hi,
My SSAS server is having 16 Core's . I have created a power view in sharepoint site, which is accessing ssas cube.
The report is taking more time to show the result. I traced the DAX query using SQL Server profiler. When I ran this DAX query in SSAS server directly, then its taking less time but when the same query running from sharepoint server (power view) , it
is taking more time. Number of records in the fact table is 300M .
Also i tracked the %process time in performance monitor, mostly the line is below 20%. I think the CPU is not fully utilized..
Could you please help me to improve the performance of my report.
Regards,
ArunHi Arun,
According to your description, you create a PowerView report in SharePoint site connect to SSAS cube, the problem is that it take long time to show the result in the report, now you want to improve report performance, right?
In your scenario, you said that it takes more time to return the result in PowerView report than run the query directly in SSMS. For a report, its run time contain retrieval data time and render report time. So it takes more time to return the result in
PowerView report than run the query directly in SSMS. And there are 300M records in the fact table, the performance can be caused by large data. Here is a blog which describes tracks down Power View performance problems.
http://blogs.msdn.com/b/psssql/archive/2013/07/29/tracking-down-power-view-performance-problems.aspx
Regards,
Charlie Liao
TechNet Community Support -
Query is taking more time to execute in PROD
Hi All,
Can anyone tell me why this query is taking more time when I am using for single trx_number record it is working fine but when I am trying to use all the records it is not fatching any records and it is keep on running.
SELECT DISTINCT OOH.HEADER_ID
,OOH.ORG_ID
,ct.CUSTOMER_TRX_ID
,ool.ship_from_org_id
,ct.trx_number IDP_SHIPMENT_ID
,ctt.type STATUS_CODE
,SYSDATE STATUS_DATE
,ooh.attribute16 IDP_ORDER_NBR --Change based on testing on 21-JUL-2010 in UAT
,lpad(rac_bill.account_number,6,0) IDP_BILL_TO_CUSTOMER_NBR
,rac_bill.orig_system_reference
,rac_ship_party.party_name SHIP_TO_NAME
,raa_ship_loc.address1 SHIP_TO_ADDR1
,raa_ship_loc.address2 SHIP_TO_ADDR2
,raa_ship_loc.address3 SHIP_TO_ADDR3
,raa_ship_loc.address4 SHIP_TO_ADDR4
,raa_ship_loc.city SHIP_TO_CITY
,NVL(raa_ship_loc.state,raa_ship_loc.province) SHIP_TO_STATE
,raa_ship_loc.country SHIP_TO_COUNTRY_NAME
,raa_ship_loc.postal_code SHIP_TO_ZIP
,ooh.CUST_PO_NUMBER CUSTOMER_ORDER_NBR
,ooh.creation_date CUSTOMER_ORDER_DATE
,ool.actual_shipment_date DATE_SHIPPED
,DECODE(mp.organization_code,'CHP', 'CHESAPEAKE'
,'CSB', 'CHESAPEAKE'
,'DEP', 'CHESAPEAKE'
,'CHESAPEAKE') SHIPPED_FROM_LOCATION --'MEMPHIS' --'HOUSTON'
,ooh.freight_carrier_code FREIGHT_CARRIER
,NVL(XX_FSG_NA_FASTRAQ_IFACE.get_invoice_amount ('FREIGHT',ct.customer_trx_id,ct.org_id),0)
+ NVL(XX_FSG_NA_FASTRAQ_IFACE.get_line_fr_amt ('FREIGHT',ct.customer_trx_id,ct.org_id),0)FREIGHT_CHARGE
,ooh.freight_terms_code FREIGHT_TERMS
,'' IDP_BILL_OF_LADING
,(SELECT WAYBILL
FROM WSH_DELIVERY_DETAILS_OE_V
WHERE -1=-1
AND SOURCE_HEADER_ID = ooh.header_id
AND SOURCE_LINE_ID = ool.line_id
AND ROWNUM =1) WAYBILL_CARRIER
,'' CONTAINERS
,ct.trx_number INVOICE_NBR
,ct.trx_date INVOICE_DATE
,NVL(XX_FSG_NA_FASTRAQ_IFACE.get_invoice_amount ('LINE',ct.customer_trx_id,ct.org_id),0) +
NVL(XX_FSG_NA_FASTRAQ_IFACE.get_invoice_amount ('TAX',ct.customer_trx_id,ct.org_id),0) +
NVL(XX_FSG_NA_FASTRAQ_IFACE.get_invoice_amount ('FREIGHT',ct.customer_trx_id,ct.org_id),0)INVOICE_AMOUNT
,NULL IDP_TAX_IDENTIFICATION_NBR
,NVL(XX_FSG_NA_FASTRAQ_IFACE.get_invoice_amount ('TAX',ct.customer_trx_id,ct.org_id),0) TAX_AMOUNT_1
,NULL TAX_DESC_1
,NULL TAX_AMOUNT_2
,NULL TAX_DESC_2
,rt.name PAYMENT_TERMS
,NULL RELATED_INVOICE_NBR
,'Y' INVOICE_PRINT_FLAG
FROM ra_customer_trx_all ct
,ra_cust_trx_types_all ctt
,hz_cust_accounts rac_ship
,hz_cust_accounts rac_bill
,hz_parties rac_ship_party
,hz_locations raa_ship_loc
,hz_party_sites raa_ship_ps
,hz_cust_acct_sites_all raa_ship
,hz_cust_site_uses_all su_ship
,ra_customer_trx_lines_all rctl
,oe_order_lines_all ool
,oe_order_headers_all ooh
,mtl_parameters mp
,ra_terms rt
,OE_ORDER_SOURCES oos
,XLA_AR_INV_AEL_SL_V XLA_AEL_SL_V
WHERE ct.cust_trx_type_id = ctt.cust_trx_type_id
AND ctt.TYPE <> 'BR'
AND ct.org_id = ctt.org_id
AND ct.ship_to_customer_id = rac_ship.cust_account_id
AND ct.bill_to_customer_id = rac_bill.cust_account_id
AND rac_ship.party_id = rac_ship_party.party_id
AND su_ship.cust_acct_site_id = raa_ship.cust_acct_site_id
AND raa_ship.party_site_id = raa_ship_ps.party_site_id
AND raa_ship_loc.location_id = raa_ship_ps.location_id
AND ct.ship_to_site_use_id = su_ship.site_use_id
AND su_ship.org_id = ct.org_id
AND raa_ship.org_id = ct.org_id
AND ct.customer_trx_id = rctl.customer_trx_id
AND ct.org_id = rctl.org_id
AND rctl.interface_line_attribute6 = to_char(ool.line_id)
AND rctl.org_id = ool.org_id
AND ool.header_id = ooh.header_id
AND ool.org_id = ooh.org_id
AND mp.organization_id = ool.ship_from_org_id
AND ooh.payment_term_id = rt.term_id
AND xla_ael_sl_v.last_update_date >= NVL(p_last_update_date,xla_ael_sl_v.last_update_date)
AND ooh.order_source_id = oos.order_source_id --Change based on testing on 19-May-2010
AND oos.name = 'FASTRAQ' --Change based on testing on 19-May-2010
AND ooh.org_id = g_org_id --Change based on testing on 19-May-2010
AND ool.flow_status_code = 'CLOSED'
AND xla_ael_sl_v.trx_hdr_id = ct.customer_trx_id
AND trx_hdr_table = 'CT'
AND xla_ael_sl_v.gl_transfer_status = 'Y'
AND xla_ael_sl_v.accounted_dr IS NOT NULL
AND xla_ael_sl_v.org_id = ct.org_id;
-- AND ct.trx_number = '2000080';
}Hello Friend,
You query will definitely take more time or even fail in PROD,becuase the way it is written. Here are my few observations, may be it can help :-
1. XLA_AR_INV_AEL_SL_V XLA_AEL_SL_V : Never use a view inside such a long query , becuase View is just a window to the records.
and when used to join other table records, then all those tables which are used to create a view also becomes part of joining conition.
First of all please check if you really need this view. I guess you are using to check if the records have been created as Journal entries or not ?
Please check the possbility of finding it through other AR tables.
2. Remove _ALL tables instead use the corresponding org specific views (if you are in 11i ) or the sysnonymns ( in R12 )
For example : For ra_cust_trx_types_all use ra_cust_trx_types.
This will ensure that the query will execute only for those ORG_IDs which are assigned to that responsibility.
3. Check with the DBA whether the GATHER SCHEMA STATS have been run atleast for ONT and RA tables.
You can also check the same using
SELECT LAST_ANALYZED FROM ALL_TABLES WHERE TABLE_NAME = 'ra_customer_trx_all'.
If the tables are not analyzed , the CBO will not be able to tune your query.
4. Try to remove the DISTINCT keyword. This is the MAJOR reason for this problem.
5. If its a report , try to separate the logic in separate queries ( using a procedure ) and then populate the whole data in custom table, and use this custom table for generating the
report.
Thanks,
Neeraj Shrivastava
[email protected]
Edited by: user9352949 on Oct 1, 2010 8:02 PM
Edited by: user9352949 on Oct 1, 2010 8:03 PM -
Bulk Collect taking more time. Please suggest .
I am working on oracle 11g
I have one normal insert proc
CREATE OR REPLACE PROCEDURE test2
AS
BEGIN
INSERT INTO first_table
(citiversion, financialcollectionid,
dataitemid, dataitemvalue,
unittypeid, financialinstanceid,
VERSION, providerid, user_comment,
userid, insert_timestamp,
latestflag, finalflag, filename,
final_ytdltm_flag, nmflag , partition_key
SELECT citiversion, financialcollectionid,
dataitemid, dataitemvalue, unittypeid,
new_fi, VERSION, providerid,
user_comment, userid,
insert_timestamp, latestflag,
finalflag, filename, '', nmflag,1
FROM secon_table
WHERE financialinstanceid = 1
AND changeflag = 'A'
AND processed_flg = 'N';
END test2;
To impove performance i have normal insert into convert it to bulk collect :
CREATE OR REPLACE PROCEDURE test
AS
BEGIN
DECLARE
CURSOR get_cat_fin_collection_data(n_instanceid NUMBER) IS
SELECT citiversion,
financialcollectionid,
dataitemid,
dataitemvalue,
unittypeid,
new_fi,
VERSION,
providerid,
user_comment,
userid,
insert_timestamp,
latestflag,
finalflag,
filename,
nmflag,
1
FROM secon_table
WHERE financialinstanceid = n_instanceid
AND changeflag = 'A'
AND processed_flg = 'N';
TYPE data_array IS TABLE OF get_cat_fin_collection_data%ROWTYPE;
l_data data_array;
BEGIN
OPEN get_cat_fin_collection_data(1);
LOOP
FETCH get_cat_fin_collection_data BULK COLLECT
INTO l_data limit 100;
FORALL i IN 1 .. l_data.COUNT
INSERT INTO first_table VALUES l_data (i);
EXIT WHEN l_data.count =0;
END LOOP;
CLOSE get_cat_fin_collection_data;
END;
END test;
But bulk collect is taking more time.
below is the timings
SQL> set timing on
SQL> exec test
PL/SQL procedure successfully completed
Executed in 16.703 seconds
SQL> exec test2
PL/SQL procedure successfully completed
Executed in 9.406 seconds
SQL> rollback;
Rollback complete
Executed in 2.75 seconds
SQL> exec test
PL/SQL procedure successfully completed
Executed in 16.266 seconds
SQL> rollback;
Rollback complete
Executed in 2.812 seconds
Normal insert :- 9.4 second
Bulk insert:- 16.266 seconds
I am processing 1 lakh rows.
Can you please tell me the reason why bulk collect is taking more time. ? According to my knowledge it should take less time.
Please suggect do i need to check any parameter?
Please help.
Edited by: 976747 on Feb 4, 2013 1:12 AM>
Can you please tell me the reason why bulk collect is taking more time. ? According to my knowledge it should take less time.
Please suggect do i need to check any parameter?In that case, your knowledge is flawed.
Pure SQL is almost always faster than PL/SQL.
If your Insert into Select is executing slow, then it is probably because the Select statement is taking long to execute. How many rows are being Selected and Inserted from your query?
You might also consider tuning the Select statement. For more information on Posting a Tuning request, read {message:id=3292438} and post the relevant information. -
Currency translation taking more time at first time in the report
Hi All,
Here is an issue regarding the currency translation in the report. when we click on the currency translation from the contaxt menu on the report, its taking more time for the first time to get the selection options. But it is fast from the second time onwards. It will be not user friendly if its takes more time for the first time. Is there any way to fast up the processing time for the first time when i go for the "currency translation" option at report level for the first time.
let me know why it takes more time for the first time when we go for this option at report level.
Thanks,
JackOnce again from the top.
This is undoubtedly not a database issue.
I doubt you can fix it in the database.
You can, however, spend a lot of hours asking questions and poking around if you are a consultant paid by the hour.
But as long as you are looking for something to do here are some that won't fix the problem but may be worth a few minutes of your time.
WHERE 1 = 1Are you kidding? Drop this nonsense. The Oracle optimizer is not brain dead. If it were my database I would also drop the parallel hint like a bad habit.
/*+ parallel(rp1, 8) */Again the Oracle optimizer is not brain dead. Ask for parallel threads that don't exist and the database will just queue your SQL and let it sit there until sufficient resources become available. -
Level1 backup is taking more time than Level0
The Level1 backup is taking more time than Level0, I really am frustated how could it happen. I have 6.5GB of database. Level0 took 8 hrs but level1 is taking more than 8hrs . please help me in this regard.
Ogan Ozdogan wrote:
Charles,
By enabling the block change tracking will be indeed faster than before he have got. I think this does not address the question of the OP unless you are saying the incremental backup without the block change tracking is slower than a level 0 (full) backup?
Thank you in anticipating.
OganOgan,
I can't explain why a 6.5GB level 0 RMAN backup would require 8 hours to complete (maybe a very slow destination device connected by 10Mb/s Ethernet) - I would expect that it should complete in a couple of minutes.
An incremental level 1 backup without a block change tracking file could take longer than a level 0 backup. I encountered a good written description of why that could happen, but I can't seem to locate the source at the moment. The longer run time might have been related to the additional code paths required to constantly compare the SCN of each block, and the variable write rate which may affect some devices, such as a tape device.
A paraphrase from the book "Oracle Database 10g RMAN Backup & Recovery"
"Incremental backups must check the header of each block to discover if it has changed since the last incremental backup - that means an incremental backup may not complete much faster than a full backup."
Charles Hooper
Co-author of "Expert Oracle Practices: Oracle Database Administration from the Oak Table"
http://hoopercharles.wordpress.com/
IT Manager/Oracle DBA
K&M Machine-Fabricating, Inc. -
Source System Extraction taking more time
Hi All,
I Have an Issue, please help me out in this.
We have two source systems in our process. One is working fine. We dont have any issue with that. But another source system taking more time to extract the data in the source system than usual. From few days only we are facing this problem. Record count is also normal. I am unable find root cause for this, please help me out regarding this issue.
It is Full update. We are using Custom program to extract the data. It is running daily.
Thanks in Advance.
Regards,
Suresh
Edited by: sureshd on Jul 14, 2011 6:04 PM
Edited by: sureshd on Jul 14, 2011 6:05 PMWhen a long running job is running in the source system side you can trace it through ST05. Simultaneously you can monitor the screen of SM50/SM66 to see what are the tables being accessed during the job.
After the loading is completed, you can deactivate the trace and then go to the Display trace option where you would see various number of SQL statements along with their tables. Check which particular statement is an expensive one by looking at the time stamp.
Then next job is to decide why that table is being accessed for so much of time and how to improve the run time of the table. check the fields inside the table and their selectivity and see wether any index already exist on that. You can do this by going into SE11. If index is not available on those specific fields ask your Basis Guy to create a secondary one on top of it which may help in better performance. hope it helps. -
Quesry taking more time to execute
Dear All,
User complained that his query is taking more time than yesterday and DB performance is also very slow, so what would be your strategy to check and fix the problem.
What could be the right approach to check and fix this.
Regards,
DevD!
Edited by: user12138514 on Nov 8, 2009 9:35 PMAnd here is the cause list for slow performance:
Slow Network connection.
Bad Connection management.
Bad Use of Cursors and the Shared Pool
Bad SQL or Query is not perfectly tune or not using bind variables.
Use of nonstandard initialization parameters.
Getting Database I/O Wrong
Redo Log Setup Problems
Serialization of data blocks in the buffer cache due to lack of free lists, free list groups, transaction slots (INITRANS), or shortage of rollback segments.
Long Full Table Scans.
High Amounts of Recursive (SYS) SQL
Deployment and Migration Errors
Table require analyzed.
Table require indexed.
Overparsing.
You have old discs.
Not enough memory.
SGA is too small or too big.
Same for cache buffer.
Your OS need tuning.
Your disc is full.
Running so many instances on a single server.
You applications are badly written.
Your applications were ported from Sybase or Microsoft SQL Server.
Your applications were ported from DB2.
Your applications dynamically create temp tables.
Someone wrote referential integrity using triggers, java, vb ...
Someone wrote replication using triggers, java, vb ...
Someone wrote a sequence using max + 1.
Table datatypes are not as per DBMS concepts; like Dates and numbers are stored as strings.
The statistics are not up to date.
There are no statistics.
What are statistics?
We are using RBO.
That's a few of the possible causes I could think of, there are lots of others.
-To analyze your application, you can install Statspack. It will give you some indications.
Hth
Girish Sharma -
Procedure is taking more time for execution
hi,
when i am trying to execute the below procedure it is taking more time for
execution.
can you pls suggest the possaible ways to tune the query.
PROCEDURE sp_sel_cntr_ri_fact (
po_cntr_ri_fact_cursor OUT t_cursor
IS
BEGIN
OPEN po_cntr_ri_fact_cursor FOR
SELET c_RI_fAt_id, c_RI_fAt_code,c_RI_fAt_nme,
case when exists (SELET 'x' FROM A_CRF_PARAM_CALIB t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM A_EMPI_ERV_CALIB_DETAIL t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM A_IC_CNTRY_IC_CRF_MPG_DTL t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM A_IC_CRF_CNTRYIDX_MPG_DTL t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM A_IC_CRF_RESI_COR t WHERE t.x_axis_c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM A_IC_CRF_RESI_COR t WHERE t.y_axis_c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM A_PAR_MARO_GAMMA_PRIME_CALIB t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM D_ANALYSIS_FAT t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM D_CALIB_CNTRY_RI_FATOR t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM E_BUSI_PORT_DTL t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM E_CNTRY_LOSS_DIST_RSLT t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM E_CNTRY_LOSS_RSLT t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM E_CRF_BUS_PORTFOL_CRITERIA t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM E_CRF_CORR_RSLT t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
when exists (SELET 'x' FROM E_HYPO_PORTF_DTL t WHERE t.c_RI_fAt_id = A_IC_CNTR_RI_FAT.c_RI_fAt_id)
then 'Yes'
else
'No'
end used_analysis_ind,
creation_date, datetime_stamp, user_id
FROM A_IC_CNTR_RI_FAT
ORDER BY c_RI_fAt_id_nme DESC;
END sp_sel_cntr_ri_fact;[When your query takes too long...|http://forums.oracle.com/forums/thread.jspa?messageID=1812597]
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