Extract the value of the node with multiple namespace xml

Similar Questions

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  Hello

  I started playing with the gears and SQlLite today and I get an error when I try to insert values into a table with multiple columns.

  I have:

  var db = google.gears.factory.create('beta.database');
      db.open('developerSet');
      db.execute('create table if not exists Developers (DeveloperName text, DeveloperAge int)');
  
      var devName = "Davy"
      var devAge = 32;
  
      try {
          db.execute('insert into Developers values (?, ?)', [devName, devAge]);
          alert('success');
      }
      catch (e) {
          alert(e);
      }
  

  I get the error:

  net.rim.device.api.database.DatabaseException; insert into developers values (?,?): SQL logic error or missing database.

  I use this reference: http://code.google.com/apis/gears/api_database.html

  Everything works if I have only one field as:

  var db = google.gears.factory.create('beta.database');
      db.open('developerSet');
      db.execute('create table if not exists Developers (DeveloperName text)');
  
      var devName = "Davy"
      var devAge = 32;
  
      try {
          db.execute('insert into Developers values (?)', [devName]);
          alert('success');
      }
      catch (e) {
          alert(e);
      }
  

  I use the plug-in Visual Studio 2.0 for 2008 that are running Windows XP SP and Simulator 2.13.0.56

  Thank you

  Davy

  Yes, a SQLite database will persist between battery pulls.  The database is registered either to internal MEM or removable media (not the device memory), depending on which is available on your device.

  In general, its not considered a best practice to remove your table as soon as it is empty and re - create it again when you want to add data.  This adds extra overhead fresh for the final, delete and insert first for a given table.  Instead, define and finalize your drawing before you create your table.  Once created, review the static schema.

  That being said, for development purposes, it may be easier to provide an easy way to drop your tables while you develop your schema.

  See you soon,.

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• Fill the tree with complex external XML file control

  Hi all. I've been combing through forums for two days and have not been able to find a solution to my problem. I'm trying to populate a control of the tree with an external xml file, but the xml file is not a simple. It is complex, and I don't know how to get the tree to display these data. I have attached the code. Can someone take a look and let me know how I could get this to work? Thank you!

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• How to extract the node where the value of the node is the max in all of the XML document?

  Hello
  
  I have a transaction that refers to an xmltype in iRecruitment, containing multiple versions of the same node as follows:
  
  (only for the example data)
  
  
  
  {noformat} & lt; Transaction & gt;
  
  
  & lt; data & gt;
  
  
  & lt; ObjectVersionNumber & gt; 1 & lt; / object_version_number & gt;
  
  
  & lt; EO & gt;
  
  
  & lt; Attribute1 & gt; A & lt; / Attribute1 & gt;
  
  
  & lt; Attribut2 & gt; B & lt; / attribut2 & gt;
  
  
  & lt; /EO & gt;
  
  
  & lt; / data & gt;
  
  
  & lt; data & gt;
  
  
  & lt; ObjectVersionNumber & gt; 2 & lt; / object_version_number & gt;
  
  
  & lt; EO & gt;
  
  
  & lt; Attribute1 & gt; A & lt; / Attribute1 & gt;
  
  
  & lt; Attribut2 & gt; C & lt; / attribut2 & gt;
  
  
  & lt; /EO & gt;
  
  
  & lt; / data & gt;
  
  
  & lt; data & gt;
  
  
  & lt; ObjectVersionNumber & gt; X & lt; / object_version_number & gt;
  
  
  & lt; EO & gt;
  
  
  & lt; Attribute1 & gt;? & lt; / Attribute1 & gt;
  
  
  & lt; Attribut2 & gt;? & lt; / attribut2 & gt;
  
  
  & lt; /EO & gt;
  
  
  & lt; / data & gt;
  
  
  & lt; / Transaction & gt; {noformat}
  
  I can extract a value for FULL-TIME 1 or 2, is not a problem.
  However, how can I go on the selection of a value of an attribute below FULL-TIME X, where X is the maximum value of FULL-TIME in any node in the XML document?
  
  I tried to the last node corresponding to my way, but it is not always the case that the FULL-TIME max will correspond to this scenario.
  
  Any help would be greatly appreciated!
  
  Thank you very much, Pete
  
  Published by: Pete Mahon on February 24, 2009 12:11

  Here's a way

  SQL> set long 100000
  SQL> with XML as (
    2  select XMLTYPE(
    3  '
    4  
    5     
    6             1
    7             
    8                     A
    9                     B
   10             
   11     
   12     
   13             2
   14             
   15                     A
   16                     C
   17             
   18     
   19     
   20             3
   21             
   22                     ?
   23                     ?
   24             
   25     
   26  ') OBJECT_VALUE
   27    from dual
   28  )
   29  select DATA, OVN
   30    from XML,
   31         XMLTable
   32         (
   33           '/Transaction/data'
   34           passing OBJECT_VALUE
   35           columns
   36           DATA XMLType path '.',
   37           OVN  number  path 'ObjectVersionNumber'
   38         )
   39   where OVN = ( select MAX(OVN)
   40                   from XML,
   41                        XMLTable
   42                        (
   43                          '/Transaction/data'
   44                          passing OBJECT_VALUE
   45                          columns
   46                          OVN  number  path 'ObjectVersionNumber'
   47                        )
   48               )
   49
  SQL> /
  
  DATA
  --------------------------------------------------------------------------------
         OVN
  ----------
  3?
  ?
           3
  
  SQL>
  

• Replacement of the nodes with duplicates

  I can't find out how to write an XQuery query which can essentially 'jump' a replacement when I said to. I don't know who makes no sense, so here's a better explanation.
  
  I have an XML file that is stored in an Oracle XML DB that looks like this:
  

  <bookstore>
      <book title="Analytical Chemistry" publish_date="198710">
         <author>...
         <publisher>....
         <etc.>
      </book>
      <book title="Particle Physics" publish_date="199202">
         <author>...
         <publisher>....
         <etc.>
      </book>
      <book title="Applied Biophysics" publish_date="201005">
         <author>...
         <publisher>....
         <etc.>
      </book>
  </bookstore>

  We get the update commands that look like the same thing, with a 'command' attached to add the book to the store or drop:
  

  <bookstore>
      <book title="Analytical Chemistry" publish_date="199210">
         <order>merge</order>
         <author>...
         <publisher>....
         <etc.>
      </book>
      <book title="Particle Physics" publish_date="199202">
         <order>drop</order>
         <author>...
         <publisher>....
         <etc.>
      </book>
      <book title="Chaos Theory" publish_date="199102">
         <order>merge</order>
         <author>...
         <publisher>....
         <etc.>
      </book>
  </bookstore>

  The rule is should I replace or add a book in the store if I have a book of the same title, and the order is "merge", or drop it if the order is to 'drop '. I have a request XQuery Update function now makes what looks like this:
  

  declare updating function local:book_merge($old, $book_merge)
  {
       for $orderEntr in $book_merge/book
       let $chgCd := $orderEntr/order
       let $orderTitle := $orderEntr/@title
          let $oldBooks := $old/bookstore
       let $oldBookEntr := $oldBooks/book[@title=$orderTitle]
       return
          if( $chgCd = "drop" and exists($oldBookEntr) )
          then delete node $oldBookEntr
          else if( exists($oldBookEntr) )
          then replace node $oldBookEntr with $orderEntr
          else insert node $orderEntr into $oldBooks
  };

  This works very well for commands like above, but once from time to time, we receive a command like this:
  

  <bookstore>
     <book title="Analytical Chemistry" publish_date="199210">
         <order>merge</order>
         <author>...
         <publisher>....
         <etc.>
      </book>
      <book title="Analytical Chemistry" publish_date="199210">
         <order>merge</order>
         <author>...
         <publisher>....
         <etc.>
      </book>
      <book title="Particle Physics" publish_date="199202">
         <order>drop</order>
         <author>...
         <publisher>....
         <etc.>
      </book>
      <book title="Chaos Theory" publish_date="199102">
         <order>merge</order>
         <author>...
         <publisher>....
         <etc.>
      </book>
  </bookstore>

  Notice how the first entry is duplicated. In this case, the requirement must only enter the book in the library once. Can someone give me an idea of how I would go about implementing that? I am struggling to understand how to ask the right question, so please forgive me.

  You can add a predicate that will filter the next (or previous) duplicates of a given input:

  where not($orderEntr/following-sibling::book[@title = $orderTitle])
  

  Full test case:

  Connected to:
  Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
  With the Partitioning, OLAP, Data Mining and Real Application Testing options
  
  SQL> create table tmp_xml of xmltype;
  
  Table created.
  
  SQL> insert into tmp_xml values (
    2  xmltype('
    3      
    4         XXX
    5         
    6      
    7      
    8         YYY
    9         
   10      
   11      
   12         ZZZ
   13         
   14      
   15  ')
   16  );
  
  1 row created.
  
  SQL> var orders clob
  SQL> begin
    2
    3   :orders := '
    4      
    5         merge
    6         XXX
    7         123
    8      
    9      
   10         merge
   11         XXX
   12         123
   13      
   14      
   15         drop
   16         YYY
   17         
   18      
   19      
   20         merge
   21         ZZZ-2
   22         
   23      
   24  ';
   25
   26  end;
   27  /
  
  PL/SQL procedure successfully completed.
  
  SQL> set long 5000
  SQL> set pages 100
  SQL>
  SQL> select /*+ no_xml_query_rewrite */
    2         xmlserialize(document
    3           xmlquery(
    4           'copy $d := $old
    5            modify (
    6              for $orderEntr in $orders/bookstore/book
    7              let $chgCd := $orderEntr/order
    8              let $orderTitle := $orderEntr/@title
    9              let $oldBooks := $d/bookstore
   10              let $oldBookEntr := $oldBooks/book[@title = $orderTitle]
   11              where not($orderEntr/following-sibling::book[@title = $orderTitle])
   12              return
   13                 if( $chgCd = "drop" and exists($oldBookEntr) )
   14                   then delete node $oldBookEntr
   15                 else if( exists($oldBookEntr) )
   16                        then replace node $oldBookEntr with $orderEntr
   17                      else insert node $orderEntr into $oldBooks
   18            )
   19            return $d'
   20           passing object_value as "old"
   21                 , xmlparse(document :orders) as "orders"
   22           returning content
   23           )
   24           indent
   25         ) as result
   26  from tmp_xml ;
  
  RESULT
  --------------------------------------------------------------------------------
  
    
      merge
      XXX
      123
    
    
      ZZZ
      
    
    
      merge
      ZZZ-2
      
    
  
  

  It's another question, you probably already have the answer: I guess you must also remove the nodes of the newly merged books?

• Problem when executing the processors in the nodes with disabled local storage

  Hello world
  
  We test the coherence JSR107 (a.k.a. JCache) implementation of Yannis (https://github.com/yannis666/Coherence-JSR-107) and we found the following issue when you work with a local storage where distributed cache node is disabled (using - Dtangosol.coherence.distributed.localstorage = false). Yannis implementation uses several EntryProcessors for the execution of operations get() or put () in the cache. For example, the following code is used to update a value in the cache:
  
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  }
  
  And put operatino is taken from the following code:
  
  namedCache.invoke (key, CPU)
  
  where processor argument contains a reference to the PutProcessor object.
  
  
  When we call JSR107 performs surgery put in the cache and code above we get following exception:
  
  java.lang.NullPointerException
  to com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$ Storage.invoke (PartitionedCache.CDB:10)
  at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache.onInvokeRequest(PartitionedCache.CDB:52)
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  at com.tangosol.coherence.component.net.message.requestMessage.DistributedCacheKeyRequest.onReceived(DistributedCacheKeyRequest.CDB:12)
  at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onMessage(Grid.CDB:34)
  at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onNotify(Grid.CDB:33)
  at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.PartitionedService.onNotify(PartitionedService.CDB:3)
  at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache.onNotify(PartitionedCache.CDB:3)
  at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:42)
  at java.lang.Thread.run(Thread.java:662)
  
  Of course we have previously started another node in the cluster with local storage enabled.
  
  It seems that, as no storage card is present at the node, a NullPointerException is thrown when you try to insert the entry.
  
  Could someone give advice on this problem and how to overcome? This implementation is based on the processor is not compatible with the knots of localstorage cache disabled?
  
  Thank you in advance,
  
  Daniel C.

  Hello

  It sounds like COH-7180 - demand deserialization failure results in a cryptic NullPointerException, that has been fixed in one of the 3.7.1 patches. The real problem is that your entryprocessor cannot be deserialized.

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  {

  'node': [{}

  "name': 'VM1."

  "properties": [{}

  "hostname": "joe".

  }],

  ["nodeComponent":]

  }]

  }

  But when you use this application I get the error message: "the node 'VM1' does not exist in the current 'deployment profile'. ' even if 'VM1' is the only node in the deployment profile.  I tried other variations and still get the same error message.

  Does anyone have suggestions for how I can configure the hostname of the node when you deploy the application?  Thank you.

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  Nevertheless, it seems that property of node specifications would help your situation... so that your comments reached the product team.

  Thank you rags

  This posting is provided as is and confers no rights.

• Structured XML index with multiple namespaces

  Hello
  
  I have some difficulty to create a xmlindex with a component structured on a column of xmltype without schema register, clob data using multiple namespaces.
  
  The code I'm using atm:
  

  CREATE TABLE "DECLARATIONS"
    (
      "ID" NUMBER(19,0),
      "XML" "SYS"."XMLTYPE"
    )
  
  CREATE INDEX decl_header_ix ON "DECLARATIONS"(xml) INDEXTYPE IS XDB.XMLINDEX
    PARAMETERS ('PATHS (INCLUDE (/emcs:emcsDeclaration/emcs:header//*)
                        NAMESPACE MAPPING (xmlns:emcs="http://www.myurl.eu/myapp/schema/emcs/nl"))');
  
  INSERT INTO "DECLARATIONS" VALUES (1,'
  <?xml version = ''1.0'' encoding = ''UTF-8'' standalone = ''yes''?>
  <emcs:emcsDeclaration xsi:schemaLocation="http://www.myurl.eu/myapp/schema/emcs/nl emcs_domain.xsd"
   xmlns:common="http://www.myurl.eu/myapp/schema/common"
   xmlns:emcs="http://www.myurl.eu/myapp/schema/emcs/nl"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
     <emcs:header>
        <common:identifier>70</common:identifier>
        <common:declarationSequenceNumber>54566</common:declarationSequenceNumber>
        <common:dateCreated>2010-10-21-01:00</common:dateCreated>
        <common:status>01 Draft e-AAD in preparation</common:status>
     </emcs:header>
  </emcs:emcsDeclaration>');

  At this time, it is not desirable for us to save the schemas used in oracle. According to the documentation, I should be able to add a component structured index as follows:
  

  BEGIN
        DBMS_XMLINDEX.registerParameter('MY_XSI_GROUP_PARAMETER'
                , 'ADD_GROUP GROUP MY_XSI_GROUP
                 XMLTABLE decl_header
                 XMLNAMESPACES (''http://www.myurl.eu/myapp/schema/emcs/nl'' AS emcs,
                         ''http://www.myurl.eu/myapp/schema/common'' AS common),
                        ''*''
                      COLUMNS
                status VARCHAR2(30)  PATH ''/emcs:emcsDeclaration/emcs:header/common:status/text()''
         ');
     END;
     / 
  ALTER INDEX DECL_HEADER_IX PARAMETERS('PARAM MY_XSI_GROUP_PARAMETER');

  However the result is an ORA-00904: invalid identifier. After a few experiences it seems that oracle is trying to parse the URL namespace as identifiers (even tho http://download.oracle.com/docs/cd/E14072_01/appdev.112/e10492/xdb_indexing.htm#BCGJAAGH & http://download.oracle.com/docs/cd/E14072_01/appdev.112/e10492/xdb_xquery.htm#BABJCHCC specify the old), so I swapped their autour:
  

  BEGIN
        DBMS_XMLINDEX.dropParameter('MY_XSI_GROUP_PARAMETER');
        DBMS_XMLINDEX.registerParameter('MY_XSI_GROUP_PARAMETER'
            , 'ADD_GROUP GROUP MY_XSI_GROUP
            XMLTABLE decl_header
            XMLNAMESPACES (emcs ''http://www.myurl.eu/myapp/schema/emcs/nl'',
            common ''http://www.myurl.eu/myapp/schema/common''),
            ''*''
            COLUMNS
            status varchar2(30)  PATH ''/emcs:emcsDeclaration/emcs:header/common:status/text()''
         ');
     END;
     / 
  ALTER INDEX DECL_HEADER_IX PARAMETERS('PARAM MY_XSI_GROUP_PARAMETER');

  Oracle doesn't seem to be a little further in this, resulting in an ORA-19102: literal string XQuery waited. Here, I kinda hit a dead-end. Removing the with xmlnamespaces altogether leads to an ORA-31013 statement: invalid XPATH expression. Passing by the examples on http://www.liberidu.com/blog/?p=1805 works very well, but whenever I try to add namespaces to it they stop working as well.
  
  So my question is: How do xmlnamespaces (with the default namespaces) to work in a structured xmlindex component?

  Hello

  I agree that is not specified in the documentation, but in the with XMLNamespaces clause, each namespace identifier must be enclosed in double quotes.
  So, pretty much like your first attempt:

  BEGIN
    DBMS_XMLINDEX.registerParameter(
      'MY_XSI_GROUP_PARAMETER',
      'ADD_GROUP GROUP MY_XSI_GROUP
       XMLTABLE decl_header
       XMLNAMESPACES (''http://www.myurl.eu/myapp/schema/emcs/nl'' AS "emcs",
                      ''http://www.myurl.eu/myapp/schema/common'' AS "common"),
       ''*''
       COLUMNS
        status VARCHAR2(30)  PATH ''/emcs:emcsDeclaration/emcs:header/common:status/text()'''
    );
  END;
  / 
  

  Subsequently, the addition of the parameter to the index should be OK.

• Update the value of the node with particular attribute

  Hello
  Oracle 11g
  I have a table with the following structure:
  

  create table xml_test (test_id varchar2(12), xml_done xmltype);

  The xml_done column uses the following structure (example XML):

  <meas id="test">
    <data-elements>
      <data-element id="abc">
        <value>1</value>
      </data-element>
      <data-element id="def">
        <value>2</value>
      </data-element>
      <data-element id="ghi">
        <value>3</value>
      </data-element>
    </data-elements>
  </meas>

  I have a requirement to update the text in the < value > < / value > based on @attribute of the id in the data < item > which it is. In my code below, I'm updating the 1 value to be 'updated value'. I tried UPDATEXML without success:
  

  UPDATE xml_Test SET XML_DONE =
     UPDATEXML(XML_DONE,
     '/meas/data-elements/data-element/value','updated value')
     WHERE extract(xml_done, '/meas/data-elements/data-element/@id') = 'abc' 
     and test_id = 1;

  Any suggestions are appreciated, thank you very much!
  
  Published by: chris001 on April 25, 2013 10:14

  Hello

  The WHERE clause filters the rows in the table, not within the XML document.
  You must use an XPath predicate for this.

  SQL> create table xml_test (test_id varchar2(12), xml_done xmltype);
  
  Table created.
  
  SQL>
  SQL> insert into xml_test (test_id, xml_done)
    2  values ('1',
    3   xmlparse(document
    4  '
    5    
    6      
    7        1
    8      
    9      
   10        2
   11      
   12      
   13        3
   14      
   15    
   16  ')
   17  );
  
  1 row created.
  
  SQL> commit;
  
  Commit complete.
  
  SQL> update xml_test
    2  set xml_done =
    3      updatexml(
    4        xml_done
    5      , '/meas/data-elements/data-element[@id="abc"]/value/text()'
    6      , 'updated value'
    7      )
    8  where test_id = '1' ;
  
  1 row updated.
  
  SQL> set long 5000
  SQL> set pages 100
  SQL> select xml_done from xml_test where test_id = '1';
  
  XML_DONE
  --------------------------------------------------------------------------------
  
    
      
        updated value
      
      
        2
      
      
        3
      
    
  
  

  If you also want to make sure that the line actually contains something to update, use XMLExists in the WHERE clause:

  SQL> roll;
  Rollback complete.
  SQL> update xml_test
    2  set xml_done =
    3      updatexml(
    4        xml_done
    5      , '/meas/data-elements/data-element[@id="abc"]/value/text()'
    6      , 'updated value'
    7      )
    8  where test_id = '1'
    9  and xmlexists(
   10        '/meas/data-elements/data-element[@id=$id]'
   11        passing xml_done
   12              , 'abc' as "id"
   13      )
   14  ;
  
  1 row updated.
  
  SQL> select xml_done from xml_test where test_id = '1';
  
  XML_DONE
  --------------------------------------------------------------------------------
  
    
      
        updated value
      
      
        2
      
      
        3
      
    
  
  

  If you are on 11.2.0.3, you can officially use XQuery Update instead.

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