Multi Select Choice on af:query has severe performance issue

Multi-select choice used with af:query through a view criteria is causing severe performance issue on deselection of "All" checkbox, if the data in the list is around 550 rows. The same component works absolutely fine when used in a form layout.
I can provide you a re-producible test case, if anyone needs it!
***: This is a customer environment issue, and customer is eager to have multi-select in this case. Appreciate any help!

Glimpse of repetitive lines from console for the above scenario:
<DCUtil> <findSpelObject> [2208] DCUtil, returning:oracle.jbo.uicli.binding.JUApplication, for TestSelectChoiceDefaultAMDataControl
<ADFLogger> <begin> Attaching an iterator binding to a datasource
<DCIteratorBinding> <getViewObject> [2209] Resolving VO:TestSelectChoiceDefaultAM._SESSION_SHARED_APPMODULE_NAME_.SessionAM.DeptReadOnly1 for iterator binding:noCtrl_oracle_adfinternal_view_faces_model_binding_FacesCtrlListBinding_59List_60
<DCUtil> <findSpelObject> [2210] DCUtil, RETURNING: <null> for TestSelectChoiceDefaultAM._SESSION_SHARED_APPMODULE_NAME_.SessionAM.DeptReadOnly1
<ADFLogger> <addContextData> Attaching an iterator binding to a datasource
<ADFLogger> <addContextData> Get LOV list
<ADFLogger> <begin> Get LOV list
<DCUtil> <findSpelObject> [2211] DCUtil, returning:oracle.jbo.uicli.binding.JUApplication, for TestSelectChoiceDefaultAMDataControl
<ADFLogger> <begin> Attaching an iterator binding to a datasource
<DCIteratorBinding> <getViewObject> [2212] Resolving VO:TestSelectChoiceDefaultAM._SESSION_SHARED_APPMODULE_NAME_.SessionAM.DeptReadOnly1 for iterator binding:noCtrl_oracle_adfinternal_view_faces_model_binding_FacesCtrlListBinding_123List_124
<DCUtil> <findSpelObject> [2213] DCUtil, RETURNING: <null> for TestSelectChoiceDefaultAM._SESSION_SHARED_APPMODULE_NAME_.SessionAM.DeptReadOnly1
<ADFLogger> <addContextData> Attaching an iterator binding to a datasource
<ADFLogger> <addContextData> Get LOV list
.....many times followed by
<ADFLogger> <addContextData> Attaching an iterator binding to a datasource
<ADFLogger> <addContextData> Get LOV list
<ADFLogger> <begin> Get LOV list
<ADFLogger> <addContextData> Get LOV list
<ADFLogger> <begin> Get LOV list
<ADFLogger> <addContextData> Get LOV list
<ADFLogger> <begin> Get LOV list
<ADFLogger> <addContextData> Get LOV list
<ADFLogger> <begin> Get LOV list
...many times

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Hi, guys:
I wonder how to update the following query to make it weekend day aware. My boss want the query to consider business days only. Below is just a portion of the query:
select count(distinct cmv.invoicekey ) total ,'3' as type, 'VALID CALL DATE' as Category
FROM cbwp_mv2 cmv
where cmv.colresponse=1
And Trunc(cmv.Invdate) Between (Trunc(Sysdate)-1)-39 And (Trunc(Sysdate)-1)-37
And Trunc(cmv.Whendate) Between cmv.Invdate+37 And cmv.Invdate+39the CBWP_MV2 is a materialized view to tune query. This query is written for a data warehouse application, the CBWP_MV2 will be updated every day evening. My boss wants the condition in the query to consider only business days, for example, if (Trunc(Sysdate)-1)-39 falls in weekend, I need to move the range begins from next coming business day, if (Trunc(Sysdate)-1)-37 falls in weekend, I need to move the range ends from next coming business day. but I should always keep the range within 3 business days. If there is overlap on weekend, always push to later business days.
Question: how to implement it and avoid performance issue? I am afraid that if I use a function, it greatly reduce the performance. This view already contains more than 100K rows.
thank you in advance!
Sam
Edited by: lxiscas on Dec 18, 2012 7:55 AM
Edited by: lxiscas on Dec 18, 2012 7:56 AM

You are already using a function, since you're using TRUNC on invdate and whendate.
If you have indexes on those columns, then they will not be used because of the TRUNC.
Consider omitting the TRUNC or testing with Function Based Indexes.
Regarding business days:
If you search this forum, you'll find lots of examples.
Here's another 'golden oldie': http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:185012348071
Regarding performance:
Steps to take are explained from the links you find here: {message:id=9360003}
Read them, they are more than worth it for now and future questions.

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Acting "Sluggish"
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Apple, if you're going to release software for Windows, please make it work.

In article <[email protected]>, Javerkio wrote:
> we are running GW 8.02 hp3 and recently moved our main post
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>
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Andy's Profile: http://forums.novell.com/member.php?userid=75037

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Pabloj,
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to change the Status field to multi-select.<o:p></o:p>
=IF(Status="NoI
Review",DATE(YEAR([Status Date]),MONTH([Status Date]),DAY([Status
Date])+21),"")<o:p></o:p>
There are no mistakes; every result tells you something of value about what you are trying to accomplish.

Hi run4it,
Since SharePoint calculated column cannot reference the choice field with multiple-select value enabled, a workaround is to use workflow to copy the "Status" column value to another single line text column, then reference this single line text column in
calculated column.
Thanks,
Daniel Yang
Forum Support
If you have feedback for TechNet Subscriber Support, contact [email protected]
Daniel Yang
TechNet Community Support

File Browser with multi select....

Is it possible to have a file browser with multi- select??? I have several (possibly dozens) of files in a directory that I'd like to up load using a file browser style item, but be able to select several at a time to up load rather that doing them on at a time. Is this possible???

Different idea, look at this thread, where you could just have multiple file upload capacity in a form.. The multi-select with browser I believe is NOT possible with current version of APEX.
how to Upload Multiple Files
Thank you,
Tony Miller
Webster, TX

Multiple table select Performance Issue

Hi,
I would like to get an opinion which from these query which is faster and has a performance issue..
SELECT EMP_ID, NAME, DEPT_NAME
FROM EMP, DEPT
WHERE EMP_ID = DEPT_ID;
or
SELECT EMP_ID, NAME, (SELECT DEPT_NAME FROM DEPT WHERE ID = P_ID)
FROM EMP
WHERE EMP_ID = P_ID;

lets say that EMP_ID on Dept table is linked to EMP_ID table on EMP..Well...I don't get your design, but the two queries may return different results.
Comparing the performance doesn't make sense.
Nevertheless, the only way is to run them both and see which one is faster or see which one has the lowest IO.
There's no way we can tell you which is faster by just looking at the text of the queries.
Post some explain plans or traces.

Query giving performance issues.

Hi All,
Following query is giving performance issues. Query execution is taking around 11 minutes. Our client requirement is to get the data for the query in 30 sec to 1 min. Please suggest.
SELECT
DISTINCT r.rptid, p.product_id, p.vnd_dscr, p.vendor_cd, p.Firm_Cd, a.is_mm_sweep IsMoneyMarket
FROM
dev.ac_cube a,
dev.rpt_master_rep_list_view r,
dev.cur_ps_cube p
WHERE a.repid = r.rep_id
AND a.accountkey = p.accountkey
AND p.product_id IS NOT NULL
AND p.product_id != 'CASH'
AND r.RPTID = '42817'
Number of distinct records fetched by above query : 34445
Number of records in dev.ac_cube table : 13.6 million
Number of records in dev.cur_ps_cube table : 7 million
Number of records in dev.rpt_master_rep_list_view for RPTID '42817' : 118354
repid, product_id is indexed column in dev.ac_cube table. accountkey is primary key in dev.ac_cube table.
rep_id is indexed column in base table on which dev.rpt_master_rep_list_view view is created

The output is not complete as i expected. Have you followed the steps I have mentioned in my earlier post
Also when posting output enclose between two {*code*} ...{*code*} (remove * within braces). It displays everything between the tags as proper formatted output otherwise its really hard to read and understand
See sample below. However you need to get the session id, sql id, display_cursor output exactly in same way as mentioned in my previous post
SQL> set arraysize 200 timing on serveroutput on linesize 200;
SQL> set autotrace traceonly explain statistics;
SQL> select level from dual connect by level <= 10000;
10000 rows selected.
Elapsed: 00:00:00.09
Execution Plan
Plan hash value: 1236776825
| Id | Operation                    | Name | Rows | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT             |      |     1 |     2   (0)| 00:00:01 |
|   1 | CONNECT BY WITHOUT FILTERING|      |       |            |          |
|   2 |   FAST DUAL                  |      |     1 |     2   (0)| 00:00:01 |
Statistics
          1 recursive calls
          0 db block gets
          0 consistent gets
          0 physical reads
          0 redo size
      57406 bytes sent via SQL*Net to client
        919 bytes received via SQL*Net from client
         51 SQL*Net roundtrips to/from client
          1 sorts (memory)
          0 sorts (disk)
      10000 rows processed
SQL>
{code}

Performance issue when a Direct I/O option is selected

Hello Experts,
One of my customers has a performance issue when a Direct I/O option is selected. Reports that there was increase in memory usage when Direct I/O storage option is selected when compared to Buffered I/O option.
There are two applications on the server of type BSO. When using Buffered I/O, experienced a high level of Read and Write I/O's. Using Direct I/O reduces the Read and Write I/O's, but dramatically increases memory usage.
Other Information -
a) Environment Details
HSS - 9.3.1.0.45, AAS - 9.3.1.0.0.135, Essbase - 9.3.1.2.00 (64-bit)
OS: Microsoft Windows x64 (64-bit) 2003 R2
b) What is the memory usage when Buffered I/O and Direct I/O is used? How about running calculations, database restructures, and database queries? Do these processes take much time for execution?
Application 1: Buffered 700MB, Direct 5GB
Application 2: Buffered 600MB to 1.5GB, Direct 2GB
Calculation times may increase from 15 minutes to 4 hours. Same with restructure.
c) What is the current Database Data cache; Data file cache and Index cache values?
Application 1: Buffered (Index 80MB, Data 400MB), Direct (Index 120MB; Data File 4GB, Data 480MB).
Application 2: Buffered (Index 100MB, Data 300MB), Direct (Index 700MB, Data File 1.5GB, Data 300MB)
d) What is the total size of the ess0000x.pag files and ess0000x.ind files?
Application 1: Page File 20GB, Index 1.7GB.
Application 2: Page 3GB, index 700MB.
Any suggestions on how to improve the performance when Direct I/O is selected? Any performance documents relating to above scenario would be of great help.
Thanks in advance.
Regards,
Sudhir

Sudhir,
Do you work at a help desk or are you a consultant? you ask such a varied range of questions I think the former. If you do work at a help desk, don't you have a next level support that could help you? If you are a consultant, I suggest getting together with another consultant that actually knows more. You might also want to close some of your questions,. You have 24 open and perhaps give points to those that helped you.

Multi Select Choice on af:query has severe performance issue

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