How to get a multi line region to call a procedure on each row updated

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  Sorry for the confusion, necessary to check it out:
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• How to get the total line count COUNT (*) SELECT and put on a page?

  Hello
  
  I use JDeveloper 10.1.3.4. I need get the total number of rows in a table and display it on a page and the problem in doing so. At the sqlplus prompt the row count simply would be, for example:
  

     select count(*) from BILL;

  I wonder if having this simple number must be so complicated and if there is more simple, better ways. Here's how I do it and the problem encountered.
  
  1. the name of the page to display the number is summary.jspx. It has a grain of support that "summed" as the managed bean name in faces - config.xml, and the name of the bean class is "summary." The component output on the page is:
  

  <h:outputText value="#{summary.totalStudentsCount}"
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  2. in summary the bean code is:
  

      private Number totalStudentsCount;
      public static int NUMBER = Types.NUMERIC;
  
      public void setTotalStudentsCount(Number totalStudentsCount) {
          this.totalStudentsCount = totalStudentsCount;
      }
  
      public Number getTotalStudentsCount() {
          ZBLCModuleImpl zblcam = getZBLCModuleImpl();
          LoggedInStudentImpl studentTable = (LoggedInStudentImpl)zblcam.getLoggedInStudent();
          String sql = "select count(lsap_uid) from BILL";
          studentTable.setQuery(sql);
          return (Number)CallStoredFunction(NUMBER, "get_total_students(?)", new Object[] {});
      }
  
      private ZBLCModuleImpl getZBLCModuleImpl() {
          FacesContext fc = FacesContext.getCurrentInstance();
          ValueBinding vb = fc.getApplication().createValueBinding("#{data}");
          BindingContext bc = (BindingContext)vb.getValue(fc);
          DCDataControl dc = bc.findDataControl("ZBLCModuleDataControl");
          ApplicationModule am = (ApplicationModule)dc.getDataProvider();
          return (ZBLCModuleImpl)am;        
      }
  
      protected Object CallStoredFunction(int sqlReturnType, String stmt, Object[] bindVars) {
          CallableStatement st = null;
          ZBLCModuleImpl zblcam = getZBLCModuleImpl();
          try {
              st = zblcam.getDBTransaction().createCallableStatement("begin ? := " + stmt + "; end", 0);
              st.registerOutParameter(1, sqlReturnType);
              if (bindVars != null) {
                  for (int z = 0; z < bindVars.length; z++) {
                      st.setObject(z + 2, bindVars[z]);
                  }
              }
              st.executeUpdate();
              return st.getObject(1);
          }
          catch (SQLException e) {
              throw new JboException(e);
          }
          finally {
              if (st != null) {
                  try {
                      st.close();
                  }
                  catch (SQLException e) {
                      throw new JboException(e);
                  }
              }
          }
      }

  The idea of calling a stored function usnig as a "helper" method is 25.5.3 in the Developer's guide, which is closest to you in my need. It's for the functions with the one IN argument; but in my case, the function is not any argument IN. That's why, when you call the helper method CallStoredFunction(), I gave an empty as the last argument and amazing array that caused the problem:
  

  return (Number)CallStoredFunction(NUMBER, "get_total_students(?)", new Object[] {});

  3. the registered function has been tested and works fine at the sqlplus prompt:

  create or replace function get_total_students
     return NUMBER
  AS
     v_student_count NUMBER;
  BEGIN
     select count(ldap_uid)
     into v_student_count
     from bill;
     return v_student_count;
  END;

  4. when the summary.jspx page is run, the browser is full of error messages, the first long line is here (I have split several online for ease of reading):

  javax.faces.el.EvaluationException: 
    javax.faces.el.EvaluationException: 
      Error getting property 'totalStudentsCount' from bean of type 
      zblc.viewcontroller.backing.staff.Summary: oracle.jbo.JboException: 
        JBO-29000: Unexpected exception caught: 
          java.sql.SQLException, msg=Missing IN or OUT parameter at index:: 2

  Thus,.
  (1) what is the problem? What is this parameter IN or OUT of {color: red} index: 2 {color} consult? It has to do with the empty array as the last argument in the call to the helper method?
  (2) this approach is an overdose, and are there more simple and better ways?
  
  Thank you very much for help!
  
  
  Newman

  Hello

  Is there a specific reason why you don't simply create read only object to display with some count (*) as OFCASES from MYTABLE and then just drag and drop the attribute ofcases in page?

  Kind regards

  Branislav

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  Hello.

  I am facing the following problem:

  Suppose I have the following in FrameMaker:

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  It is a sentence. And (back)

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  There also this sentence. (return)

  There also this sentence. (return)

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  Download the text of the entire paragraph where the insertion point of the cursor is.

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  For the fourth paragraph, it functions as the third paragraph. If the cursor is in the third row I get only this one.

  Could you please provide of the FDK in C++ to start with code?

  It's a puzzle.

  As you are in the forum script, I am related to this here. You must understand the FDK C++ code yourself.

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  code................

  for example :-{} public void onValueChangeListener (ValueChangeEvent valueChangeEvent)
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  Popz

  Published by: Popz on 2 April 2013 05:34

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