I found the easiest way to write a table or even tables from database to XML file is in.NET languages. To do this in Java you might probably need to include not only one but few proprietary library or open source jar file.

To do this in C#, one of the .NET languages, there is no additional reference need to be added to the project. Only using System.Data is needed because of the Dataset.

The code segment that writes dataset to XML file as follow (the code segment is from MSDN library):

    static void WriteXmlToFile(DataSet thisDataSet)

    {

      if (thisDataSet == null) { return; }

      // Create a file name to write to.

      string filename = "XmlDoc.xml";

      // Create the FileStream to write with.

      System.IO.FileStream stream = new System.IO.FileStream

          (filename, System.IO.FileMode.Create);

      // Write to the file with the WriteXml method.

      thisDataSet.WriteXml(stream);

}

The complete code to extract the data from employee table of HR schema to XML from is in http://skydrive.live.com. The sample file name is ConsoleDatasettoXML .zip. My MSN ID is chanmmn@hotmail.com.

Many developers still using C++ for some reasons. One of my customers is using VC++ but with open source database and he is not that happy with the database so he wants to change to Oracle database. This is a simple sample that I build for him with 1 button and 1 listbox.

When I was doing few lines of code for this sample I realize 2 not quite happy scenario in VC++; 1. The Oracle DataAccess Class does not appear in blue for example, OracleConnection, as compare to C#. 2. The intellisense is not as strong when comparing to C# as well.

The following are the few lines of code that in the sample:

static String ^ORA_CONNECTION_STRING = "Data Source=orcldemo;Persist Security Info=True;User ID=HR;Password=hr;";

private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {

       OracleConnection ^conn = gcnew OracleConnection(ORA_CONNECTION_STRING);

       conn->Open();

       OracleCommand ^cmd = gcnew OracleCommand();

       cmd->Connection = conn;

       cmd->CommandText = "select department_id, department_name, city"

                + " from departments d, locations l" + " where d.location_id =

                   l.location_id";

        OracleDataReader ^dr = cmd->ExecuteReader();

       while (dr->Read())

       {

         listBox1->Items->Add("The " + dr->GetString(1) +

                           " department is in " + dr->GetString(2));

       }

       conn->Close();      

     }

Download the sample file from http://skydrive.live.com. The sample file name is WinAppCpp.zip. My MSN ID is chanmmn@hotmail.com

The simplest 1 InputText and 1 CommandButton ADF (Application Development Framework) sample

It is a simple Java Server Page with ADF but it is not easy to find in the Internet. So, I created one here.

I have only one InputText and One Commandbutton on my page, all the properties are by default. I have a jspx page named OneButton.jspx and managed bean named OneButton.java.

Here is the XML representation in OneButton.jspx:

My InputText named inputText1 and CommandButton commandButton1. I have the following code in the managed bean:

    public void setInputText1(CoreInputText inputText1) {

        this.inputText1 = inputText1;

    }

    public CoreInputText getInputText1() {

        return inputText1;

    }

    public void setCommandButton1(CoreCommandButton commandButton1) {

        this.commandButton1 = commandButton1;

    }

    public CoreCommandButton getCommandButton1() {

        return commandButton1;

    }

    public String commandButton1_action() {

        // Add event code here...

        String name = "Hello";

        inputText1.setValue(name);

        return null;

}

Download the sample file from http://skydrive.live.com. The sample file name is JustAButton.zip. My MSN ID is chanmmn@hotmail.com

Download JDeveloper here: http://www.oracle.com/technology/products/jdev/index.html, unzip JDeveloper. Open the JDeveloper application file with jws extension.

Getting start using JDeveloper

This short article is based on South East Asia midsize region.

Many people in this region do not like Java because the developers feel Java code has no IDE (Integrated Development Environment) or the IDE does not run on their programming code. The question should ask here is “Why is this type of thinking emerge?” One of the obvious reason to this is the students never get to learn IDE tool from the school. Yet, do the lecturers themselves ever use any of these IDE tools? That will pretty much let the students think that the most powerful programming tool in the world is called Notepad.

There are several IDE tools for Java development in the market. I will only get start with JDeveloper in this article. JDeveloper is a tool that covers the complete development life cycle; Design -> Code -> Debug and Test -> Analyze -> Tune -> Deploy -> Versioning. To see the complete development life cycle demo click on the link: http://www.oracle.com/technology/products/jdev/viewlets/1013/JDev_complete_viewlet_swf.html

To get start with JDeveloper, try the Introduction to the JDeveloper IDE: http://www.oracle.com/technology/obe/obe1013jdev/10131/introide/introjdevide.htm

There are two good tutorials the developer should go through. The first tutorial is the J2EE Tutorial:  http://www.oracle.com/technology/obe/JavaEE_tutorial_10131/index.htm. The second tutorial is ADF tutorial: http://www.oracle.com/technology/obe/ADF_tutorial_1013/10131/index.htm

After the demo and tutorials the developers are able to put into production environment.

Online demos:

http://www.oracle.com/technology/products/jdev/viewlets/viewlet.html

Installed Windows Server 2008 x64

I was thinking to upgrade my 32 bit Windows Server 2008 to 64 bit Windows Server 2008. I want to retain all the applications and settings that I have installed in my 32 bit Windows 2008 so instead of fresh installation I intended to upgrade.

The good parts are I can initial the installation of Visual Studio 2008, Symantec Endpoint v11 32 bit runs and JDeveloper runs without giving any problem till now.

The bad parts, perhaps need the effort of both, are Oracle 10g 64 bit keep complaining the Operating System is neither NT 5.0 nor NT 5.1 but NT 6.0 so it cannot install in it. Well, that I think Oracle part need to get it solve.  

I will post more and more 64 bit stuffs because of 64 bit question is getting more in ODP.NET forum as well as others like C# General forum