Create a button for af:table #{bindings. Create.Execute} - problem

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  The way it is, is the following:
  I have a table named ctn_pub_cntl

  
  

  CREATE TABLE CTNAPP.ctn_pub_cntl 
  (ctn_pub_cntl_id          NUMBER(18)
  ,table_name                  VARCHAR2(50)
  ,last_pub_tms              DATE
  ,queue_name               VARCHAR2(50)
  ,dest_system              VARCHAR2(50)
  ,frequency                  NUMBER(6)
  ,status                      VARCHAR2(8)
  ,record_create_tms          DATE
  ,create_user_id                VARCHAR2(8)
  ,record_update_tms          DATE
  ,update_user_id             VARCHAR2(8)
  ,CONSTRAINT ctn_pub_cntl_id_pk PRIMARY KEY(ctn_pub_cntl_id)
  );
  
  

  To do this, the data are:

  
  

  INSERT INTO CTNAPP.ctn_pub_cntl
  (ctn_pub_cntl_id    
   ,table_name         
   ,last_pub_tms  
  ,queue_name  
   ,dest_system        
   ,frequency          
  )
  VALUES
  (CTNAPP_SQNC.nextval
  ,'TRKFCG_SBDVSN'
  ,TO_DATE('10/2/2004 10:17:44PM','MM/DD/YYYY HH12:MI:SSPM')
  ,'UT.TSD.TSZ601.UNP'
  ,'SAP'
  ,15
  );
  
  INSERT INTO CTNAPP.ctn_pub_cntl
  (ctn_pub_cntl_id    
   ,table_name         
   ,last_pub_tms  
   ,queue_name  
   ,dest_system        
   ,frequency          
  )
  VALUES
  (CTNAPP_SQNC.nextval
  ,'TRKFCG_TRACK_SGMNT_DN'
  ,TO_DATE('02/06/2015 9:50:00AM','MM/DD/YYYY HH12:MI:SSPM')
  ,'UT.TSD.WRKORD.UNP'
  ,'SAP'
  ,30
  );
  
  INSERT INTO CTNAPP.ctn_pub_cntl
  (ctn_pub_cntl_id    
   ,table_name         
   ,last_pub_tms  
  ,queue_name  
   ,dest_system        
   ,frequency          
  )
  VALUES
  (CTNAPP_SQNC.nextval
  ,'TRKFCG_FXPLA_TRACK_LCTN_DN'
  ,TO_DATE('10/2/2004 10:17:44PM','MM/DD/YYYY HH12:MI:SSPM')
  ,'UT.TSD.YRDPLN.INPUT'
  ,'SAP'
  ,30
  ); 
  
  INSERT INTO CTNAPP.ctn_pub_cntl
  (ctn_pub_cntl_id    
   ,table_name         
   ,last_pub_tms  
  ,queue_name  
   ,dest_system        
   ,frequency          
  )
  VALUES
  (CTNAPP_SQNC.nextval
  ,'TRKFCG_FXPLA_TRACK_LCTN2_DN'
  ,TO_DATE('02/06/2015 9:50:00AM','MM/DD/YYYY HH12:MI:SSPM')
  ,'UT.TSD.TSZ601.UNP'
  ,'SAP'
  ,120
  );
  
  INSERT INTO CTNAPP.ctn_pub_cntl
  (ctn_pub_cntl_id    
   ,table_name         
   ,last_pub_tms 
  ,queue_name  
   ,dest_system        
   ,frequency          
  )
  VALUES
  (CTNAPP_SQNC.nextval
  ,'TRKFCG_FXPLA_TRACK_LCTN2_DN'
  ,TO_DATE('04/23/2015 11:50:00PM','MM/DD/YYYY HH12:MI:SSPM')
  ,'UT.TSD.YRDPLN.INPUT'
  ,'SAP'
  ,10
  );
  
  INSERT INTO CTNAPP.ctn_pub_cntl
  (ctn_pub_cntl_id    
   ,table_name         
   ,last_pub_tms 
  ,queue_name  
   ,dest_system        
   ,frequency          
  )
  VALUES
  (CTNAPP_SQNC.nextval
  ,'TRKFCG_FIXED_PLANT_ASSET'
  ,TO_DATE('04/23/2015 11:50:00AM','MM/DD/YYYY HH12:MI:SSPM')
  ,'UT.TSD.WRKORD.UNP'
  ,'SAP'
  ,10
  );
  
  INSERT INTO CTNAPP.ctn_pub_cntl
  (ctn_pub_cntl_id    
   ,table_name         
   ,last_pub_tms 
  ,queue_name  
   ,dest_system        
   ,frequency          
  )
  VALUES
  (CTNAPP_SQNC.nextval
  ,'TRKFCG_OPRLMT'
  ,TO_DATE('03/26/2015 7:50:00AM','MM/DD/YYYY HH12:MI:SSPM')
  ,'UT.TSD.WRKORD.UNP'
  ,'SAP'
  ,30
  );
  
  INSERT INTO CTNAPP.ctn_pub_cntl
  (ctn_pub_cntl_id    
   ,table_name         
   ,last_pub_tms
  ,queue_name  
   ,dest_system        
   ,frequency          
  )
  VALUES
  (CTNAPP_SQNC.nextval
  ,'TRKFCG_OPRLMT_SGMNT_DN'
  ,TO_DATE('03/28/2015 12:50:00AM','MM/DD/YYYY HH12:MI:SSPM')
  ,'UT.TSD.WRKORD.UNP'
  ,'SAP'
  ,30
  );
  
  /
  
  COMMIT;
  
  

  Once the above data are inserted and committed, then I created a feature in a package:
  

  
  

  CREATE OR REPLACE PACKAGE CTNAPP.CTN_PUB_CNTL_EXTRACT_PUBLISH
  IS
  
  TYPE tNameTyp IS TABLE OF ctn_pub_cntl.table_name%TYPE INDEX BY BINARY_INTEGER;
  g_tName tNameTyp;
  
  TYPE tClobTyp IS TABLE OF CLOB INDEX BY BINARY_INTEGER;
  g_tClob tClobTyp;
  
  
  FUNCTION GetCtnData(p_nInCtnPubCntlID IN CTN_PUB_CNTL.ctn_pub_cntl_id%TYPE,p_count OUT NUMBER ) RETURN tClobTyp;
  
  
  END CTNAPP.CTN_PUB_CNTL_EXTRACT_PUBLISH;
  
  
  --Package body
  
  CREATE OR REPLACE PACKAGE BODY CTNAPP.CTN_PUB_CNTL_EXTRACT_PUBLISH
  IS
  
       doc           xmldom.DOMDocument;
       main_node     xmldom.DOMNode;
       root_node     xmldom.DOMNode;
       root_elmt     xmldom.DOMElement;
       child_node    xmldom.DOMNode;
       child_elmt    xmldom.DOMElement;
       leaf_node     xmldom.DOMNode;
       elmt_value    xmldom.DOMText;
       tbl_node      xmldom.DOMNode;
       table_data    XMLDOM.DOMDOCUMENTFRAGMENT;
    
       l_ctx         DBMS_XMLGEN.CTXHANDLE;
       vStrSqlQuery  VARCHAR2(32767);
       l_clob        tClobTyp;
       --
       l_xmltype     XMLTYPE;
       --
  --Local Procedure to build XML header     
  PROCEDURE BuildCPRHeader IS
  
    BEGIN
      child_elmt := xmldom.createElement(doc, 'PUBLISH_HEADER');
      child_node  := xmldom.appendChild (root_node, xmldom.makeNode (child_elmt));
  
      child_elmt := xmldom.createElement (doc, 'SOURCE_APLCTN_ID');
      elmt_value := xmldom.createTextNode (doc, 'CTN');
      leaf_node  := xmldom.appendChild (child_node, xmldom.makeNode (child_elmt));
      leaf_node  := xmldom.appendChild (leaf_node, xmldom.makeNode (elmt_value));
      
      child_elmt := xmldom.createElement (doc, 'SOURCE_PRGRM_ID');
      elmt_value := xmldom.createTextNode (doc, 'VALUE');
      leaf_node  := xmldom.appendChild (child_node, xmldom.makeNode (child_elmt));
      leaf_node  := xmldom.appendChild (leaf_node, xmldom.makeNode (elmt_value));
  
      child_elmt := xmldom.createElement (doc, 'SOURCE_CMPNT_ID');
      elmt_value := xmldom.createTextNode (doc, 'VALUE');
      leaf_node  := xmldom.appendChild (child_node, xmldom.makeNode (child_elmt));
      leaf_node  := xmldom.appendChild (leaf_node, xmldom.makeNode (elmt_value));
  
      child_elmt := xmldom.createElement (doc, 'PUBLISH_TMS');
      elmt_value := xmldom.createTextNode (doc, TO_CHAR(SYSDATE, 'YYYY-MM-DD HH24:MI:SS'));
      leaf_node  := xmldom.appendChild (child_node, xmldom.makeNode (child_elmt));
      leaf_node  := xmldom.appendChild (leaf_node, xmldom.makeNode (elmt_value));
      
  END BuildCPRHeader;
  
  --Get table data based on table name
  FUNCTION GetCtnData(p_nInCtnPubCntlID IN CTN_PUB_CNTL.ctn_pub_cntl_id%TYPE,p_Count OUT NUMBER) RETURN tClobTyp IS
      
      vTblName      ctn_pub_cntl.table_name%TYPE;
      vLastPubTms   ctn_pub_cntl.last_pub_tms%TYPE;
       
  BEGIN
              g_vProcedureName:='GetCtnData';    
              g_vTableName:='CTN_PUB_CNTL';
              
          SELECT table_name,last_pub_tms
          INTO   vTblName, vLastPubTms
          FROM   CTN_PUB_CNTL
          WHERE  ctn_pub_cntl_id=p_nInCtnPubCntlID;
      
      -- Start the XML Message generation
          doc := xmldom.newDOMDocument;
          main_node := xmldom.makeNode(doc);
          root_elmt := xmldom.createElement(doc, 'PUBLISH');
          root_node := xmldom.appendChild(main_node, xmldom.makeNode(root_elmt));
          
        --Append Table Data as Publish Header
          BuildCPRHeader;
          
        --Append Table Data as Publish Body
        
         child_elmt := xmldom.createElement(doc, 'PUBLISH_BODY');
         leaf_node  := xmldom.appendChild (root_node, xmldom.makeNode(child_elmt)); 
         
         DBMS_SESSION.SET_NLS('NLS_DATE_FORMAT','''YYYY:MM:DD HH24:MI:SS''');
         
         vStrSqlQuery := 'SELECT * FROM ' || vTblName 
                        || ' WHERE record_update_tms <= TO_DATE(''' || TO_CHAR(vLastPubTms, 'MM/DD/YYYY HH24:MI:SS') || ''', ''MM/DD/YYYY HH24:MI:SS'') ' ;
                      --  ||  ' AND rownum < 16'
                        --;
        DBMS_OUTPUT.PUT_LINE(vStrSqlQuery);
         
         l_ctx  := DBMS_XMLGEN.NEWCONTEXT(vStrSqlQuery);
        DBMS_XMLGEN.SETNULLHANDLING(l_ctx, 0);
        DBMS_XMLGEN.SETROWSETTAG(l_ctx, vTblName); 
         
        -- Append Table Data as XML Fragment
        l_clob(1):=DBMS_XMLGEN.GETXML(l_ctx);  
        elmt_value := xmldom.createTextNode (doc, l_clob(1)); 
       leaf_node  := xmldom.appendChild (leaf_node, xmldom.makeNode (elmt_value)); 
       
       xmldom.writeToBuffer (doc, l_clob(1));
       l_clob(1):=REPLACE(l_clob(1),'&lt;?xml version=&quot;1.0&quot;?&gt;', NULL);
       l_clob(1):=REPLACE(l_clob(1),'&lt;', '<');
       l_clob(1):=REPLACE(l_clob(1),'&gt;', '>');
       
       RETURN l_clob;
       
       DBMS_OUTPUT.put_line('Answer is' ||l_clob(1));
       
       EXCEPTION
          
          WHEN NO_DATA_FOUND THEN
          
          DBMS_OUTPUT.put_line('There is no data with' || SQLERRM);
          g_vProcedureName:='GetCtnData';
          g_vTableName:='CTN_PUB_CNTL';
          g_vErrorMessage:=SQLERRM|| g_vErrorMessage;
          g_nSqlCd:=SQLCODE;
          ctn_log_error('ERROR',g_vErrorMessage,'SELECT',g_nSqlCd,p_nInCtnPubCntlID,g_vPackageName,g_vProcedureName,g_vTableName);
          
          
          WHEN OTHERS THEN
         
         DBMS_OUTPUT.PUT_LINE('ERROR : ' || SQLERRM);
         ctn_log_error('ERROR',g_vErrorMessage,'OTHERS',g_nSqlCd,p_nInCtnPubCntlID,g_vPackageName,g_vProcedureName,g_vTableName);
         
  END GetCtnData;
  
  
  PROCEDURE printClob (result IN OUT NOCOPY CLOB) IS
      xmlstr   VARCHAR2 (32767);
      line     VARCHAR2 (2000);
  BEGIN
      xmlstr := DBMS_LOB.SUBSTR (result, 32767);
  
      LOOP
         EXIT WHEN xmlstr IS NULL;
         line := SUBSTR (xmlstr, 1, INSTR (xmlstr, CHR (10)) - 1);
         DBMS_OUTPUT.put_line (line);
         xmlstr := SUBSTR (xmlstr, INSTR (xmlstr, CHR (10)) + 1);
      END LOOP;
  END printClob;
  
  END CTN_PUB_CNTL_EXTRACT_PUBLISH;
  
   
  

  If you notice my query:

  
  

  vStrSqlQuery := 'SELECT * FROM ' || vTblName 
                        || ' WHERE record_update_tms <= TO_DATE(''' || TO_CHAR(vLastPubTms, 'MM/DD/YYYY HH24:MI:SS') || ''', ''MM/DD/YYYY HH24:MI:SS'') ' ;
                       ||  ' AND rownum < 16'
                      ;
  

  The minute I comment

  ||  ' AND rownum < 16' ;

  
  

  It generates an error because this query returns about 600 lines and all these lines must be published in XML format and the tragedy, is that it is a C program between institutions i.e. C calls my functions of packged and then will do all the processing. This will return the results to the C program. Then obviously C does not recognize the CLOB and somewhere in the process, I convert to VARCHAR or CLOB CLOB, I have to use VARCHAR as a return type. That's my challenge.

  
  

  Someone who can help me find the number required of magic and also a brief knows how, I understand that. Thanks in advance.
  

  Not that I would use it myself but your package can be simplified down, like this:

  create or replace package ctn_pub_cntl_extract_publish is
  
    C_DTFORMAT  constant varchar2(30) := 'YYYY-MM-DD HH24:MI:SS';
  
    function getXMLData (p_table_name in varchar2, p_pub_tms in date) return xmltype;
    function getCTNData (p_id in number) return clob;
  
  end ctn_pub_cntl_extract_publish;
  /
  
  create or replace package body ctn_pub_cntl_extract_publish is
  
    function getXMLData (p_table_name in varchar2, p_pub_tms in date)
    return xmltype
    is
  
      v_query  varchar2(32767) :=
               q'{select * from $$TABLE_NAME where record_update_tms <= to_date(:1, 'YYYYMMDDHH24MISS')}';
  
      ctx      dbms_xmlgen.ctxHandle;
      doc      xmltype;
  
    begin
  
      execute immediate 'alter session set nls_date_format = "'||C_DTFORMAT||'"';
      v_query := replace(v_query, '$$TABLE_NAME', dbms_assert.simple_sql_name(p_table_name)); 
  
      ctx := dbms_xmlgen.newContext(v_query);
      dbms_xmlgen.setBindValue(ctx, '1', to_char(p_pub_tms, 'YYYYMMDDHH24MISS'));
      dbms_xmlgen.setRowSetTag(ctx, p_table_name);
      dbms_xmlgen.setNullHandling(ctx, dbms_xmlgen.DROP_NULLS);
      doc := dbms_xmlgen.getXMLType(ctx);
      dbms_xmlgen.closeContext(ctx);
  
      return doc; 
  
    end;
  
    function getCTNData (p_id in number)
    return clob
    is
  
      doc  clob;
  
    begin
  
      select xmlserialize(document
               xmlelement("PUBLISH"
               , xmlelement("PUBLISH_HEADER"
                 , xmlforest(
                     'CNT' as "SOURCE_APLCTN_ID"
                   , 'VALUE' as "SOURCE_PRGRM_ID"
                   , 'VALUE' as "SOURCE_CMPNT_ID"
                   , to_char(sysdate, C_DTFORMAT) as "PUBLISH_TMS"
                   )
                 )
               , xmlelement("PUBLISH_BODY"
                 , getXMLData(t.table_name, t.last_pub_tms)
                 )
               )
             )
      into doc
      from ctn_pub_cntl t
      where t.ctn_pub_cntl_id = p_id;
  
      return doc;
  
    end;
  
  end ctn_pub_cntl_extract_publish;
  

  Function getXMLData() generates a canonical XML document out of the table that is passed as a parameter.

  Function built getCTNData() code XML "PUBLISH", the document using SQL/XML functions, the getXMLData() call in the process and returns the content serialized as a CLOB.

• In my destination of button I want to #{bindings. EmployeesView1.currentRow.EmployeeId} but to me #{bindings. EmployeesView1.currentRow.dataProvider}?

  Mr President.

  In my destination of button I want to #{bindings. EmployeesView1.currentRow.EmployeeId}

  but to me

  #{bindings. EmployeesView1.currentRow.dataProvider}?

  What is missing in my application?

  Help, please

  Concerning

  User, tell us your version of JDev, please!

  I assume that you are using an af:table on the page and want to get the employeeId of the current line to pass it as a parameter to a link?

  In this case you must drag the emplyoeeId of the VO you use for the table on the page and drop it on the page as inputText (no matter where you drop it). Then switch to view source to see the source of the page. Now remove the af: inputText just dropped. The effect of this is that you remove the component from the page, but a binding attribute to the employeeId of the sheet. This binding of the attribute will now hold the employeeId of current lines and can be used in your destination as

  ... destination = ' some_link & #{bindings. " EmployeeId.inputValue}.

  Timo