Update Query Runs On

I have a simple index page that lists a set of records, each
having an anchor tag, which when clicked opens a detail page
providing details of that record. The detail page for the record
provides for the update of any content that is changed on the form.
Everything appears to run fine when the update button is clicked -
and the database updates. Now if I return to to the index page
after the update I find that the page properly refreshes and data
may, or may not appear in light of the changes just made on the
update page and because of the filter that is part of the SQL of
the index page query. However, even though the page is propery
refreshed the status bar on the bottom of the browser indicates
that some sort of query activity is going on as evidenced by the
painting of a left-to-right series of blue squares. Although this
circumstance does not appear to inhibit the updating of records -
the status bar activity is a concern. I surmise that the update
process is not quite wrapped up. Any comments you might have about
this scenario and a possible solution would be appreciated.
Thanks!

Although this circumstance does not appear to inhibit the
updating of
records - the status bar activity is a concern. I surmise
that the
update process is not quite wrapped up.
Nope that status bar has nothing to do with and no knowledge
of the
update process. It is the browser waiting on the current page
to finish
processing, and the way you have describe your system, the
update has
completed before this page was even started.

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        'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03"; (::)                                                     
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    local-name-from-QName(QName("http://www.cigna.com/acme/domains/actions/2010/03",/action/@xsi:type))                                                                 
        PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
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        *"ACTN_ID"* AS (CAST(SYS_XQ_UPKXML2SQL(SYS_XQEXVAL(XMLQUERY(
        'declare default element namespace "http://www.cigna.com/acme/domains/actions/2010/03";/action/@id'
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          0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
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        TABLESPACE "ACME_DATA" ;
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          "STAT_DT"
        PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
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        INDEX *"CROUTREACH"."ACTION_MBRID_TYP_STAT_IDX"* ON "CROUTREACH"."ACTION"
          "ACME_MBR_ID",
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        PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS STORAGE
          INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE
          0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT
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    Richard Blanchard

    odie 63
    update /*+ NO_XML_DML_REWRITE */croutreach.action set object_value = :1 where actn_id = :2 .
    This update pattern is used in the production environment and is slowing the environment down as more xml content is increased. In a new release build, this update pattern against the action table described earlier, is particularly problematic.
    Have some more information on the /*+ NO_XML_DML_REWRITE */ hint. It turns out, last year, updates statements would intermittently fail to correctly update silently failing. An Oracle Service Request was created. Over the span of about 5 mnths, Oracle determined a very low level Oracle kernel bug was the culprit. Oracle As a result of this SR, Oracle SUpport created BUG 11939507 <ORA-08102: index key not found during update on xmltable with a virtual column>. This bug is viewable on metalink. Oracle claims this bug has only been oberved on In the interim to 11.2.0.3, Oracle Support mentioned to use /*+ NO_XML_DML_REWRITE */; thus disabling piecewise update.
    Here's preface information on this bug:
    Bug 11939507: ORA-08102: INDEX KEY NOT FOUND DURING UPDATE ON XMLTABLE WITH VIRTUAL COLUMN  
    Bug Attributes
    Type B - Defect Fixed in Product Version 12.1
    Severity 2 - Severe Loss of Service Product Version 11.2.0.1
    Status 80 - Development to Q/A Platform 23 - Oracle Solaris on SPARC (64-bit)
    Created 30-Mar-2011 Platform Version 10
    Updated 13-Feb-2012 Base Bug -
    Database Version 11.2.0.1  
    Affects Platforms Generic  
    Product Source Oracle  
    Hdr: 11939507 11.2.0.1 XDB 11.2.0.1 BINARY PRODID-5 PORTID-23
    Abstract: ORA-8102: INDEX KEY NOT FOUND DURING UPDATE ON XMLTABLE WITH VIRTUAL COLUMN*** 03/30/11 12:22 pm ***
    BUG TYPE CHOSEN  =============== code   
    Component: XML Database  ======================= 
    DETAILED PROBLEM DESCRIPTION  ============================ 
    The issue happens intermittently when running a batch program with 50  concurrent sessions that involves high concurrent updates.
    DIAGNOSTIC ANALYSIS  ===================  reproducible testcase on customer dummy data reproduced by Thomas. 
    WORKAROUND?  ===========  No   
    TECHNICAL IMPACT  ================  Customer is experiencing this error which is critical to the application  because it causes a home health care provider to possibly lose a couple  hours worth of work and have to start from scratch. The condition has only  accessed concurrently from about 40 threads  
    RELATED ISSUES (bugs, forums, RFAs)  ===================================  Bug 8514561 - ORA-8102 WHEN UPDATING TABLE
    HOW OFTEN DOES THE ISSUE REPRODUCE AT CUSTOMER SITE?  ====================================================  Intermittent  
    DOES THE ISSUE REPRODUCE INTERNALLY?  ====================================  Intermittent
    IS A TESTCASE AVAILABLE?  ========================  Yes  The good news is, this bug is corrupting a virtual index column.
    I'll try test cases using the update pattern; 'update /*+ NO_XML_DML_REWRITE */croutreach.action set object_value = :1 where actn_id = :2 ' - substituting actual values for the bind variables and removing interfering virtual columns. Wil lcompare with and w/o the hint.
    This wil address your; "Where does the new values come from? Individual variables?" - and provide sample data.
    Presently, this update pattern is used 'blindly' in that when no xml relevent changes are identified, only a couple of the roughly 16 fields are updated - yet the whole document gets updated with this update pattern. When changes occur, the whole document is updated. Will work with updating 1 or 2 fields using updatexml and try the xmlexists function for the predicate.
    04/25/12 Update:
    odie 63,
    Here's a sample xml record from the action securefile binary xml table:
    <?xml version = '1.0' encoding = 'UTF-8' standalone = 'yes'?><action xsi:type="AssessmentActionType" status_dt="2012-01-18T19:38:21.077Z" status="not applicable" create_dt="2012-01-17T23:10:16.173Z" id="dfdfdfdfdfddfdfdfdfdfdf" xmlns:ns5="http://www.xxxxx.ddd/exception/definition/schema/2010/01" xmlns="http://www.xxxxxx.ddd/mmm/domains/actions/2010/03" xmlns:ns6="http://www.xxxxx.ddd/mmm/domains/utility/outcome/2010/03" xmlns:ns7="http://www.xxxxxx.ddd/mmm/domains/common/2010/03" xmlns:ns2="http://www.xxxxx.ddd/mmm/messages/actions/2010/03" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns3="http://www.xxxxx.ddd/mmm/domains/workforce/2010/03" xmlns:ns4="http://www.xxxxxx.ddd/mmm/domains/entitlement/2011/11">
       <acmeMemberId>abcdefghijklmnop</acmeMemberId>
       <advocacyPlanId>qrstuvwxyz</advocacyPlanId>
       <srvContextPointer>
          <serviceDefUrn>urn:coderunner:Medical:Definition:ServiceService:11111:7</serviceDefUrn>
          <outreachActionDefInfo sequence="1" actionDefUrn="urn:xxxxxxxxxx:Medical:Definition:Action:50813:2" actionDefId="xxxxxx">
             <srvContextPath>Access Profile~Why did you access the profile?~Reason for access?</srvContextPath>
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    </action>Started out using this update statement against the virtual column a.actn_id. This column is also indexed as a fbi.
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    Then removed the reliance on the virtual column using the xmlexists fn.
    First did an alter index 'actn_id_pk invisible' to take the virtual column out of consideration by the optimizer.
    UPDATE /*+ NO_XML_DML_REWRITE */ action A
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    where xmlexists('$p/action[@id="'888a80be-d69f-464d-b3f7-85b6209f918e'"]' PASSING object_value as "p");
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    Also created a basic unstructured xmlindex to remove the full table scan - which worked fine execution plan-wise.
    create index action_xmlindex_ix on action (object_value) indextype is xdb.xmlindex;Per the SR on this, the /*+ NO_XML_DML_REWRITE */ disables piecewise update and is a workaround for the bug surrounding virtual column index usage when having many concurrent sessions and updates against a table with millions of xml documents. Getting rid of the virtual column in the predicate removes the need for the workaround hint.
    My problem is This update runs but doesn't update any columns. Maybe am missing something or doing a syntax/semantic error ?
    Any assistance much appreciated...
    Regards,
    Rick Blanchard
    Edited by: RickBlanchardSRSCigna on Apr 25, 2012 12:52 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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             

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