Not to display the null values from data base
Hiiii.
In a jsp file i have ten check boxes.The jsp file is mapped to a servlet file for parameter requesting and to
store it in DB.
The unchecked box values has null values.All the values are store in a Mysql DB table.
Again i have to display it in a jsp page from table.
The problem am facing was,how can i display only the values in a row.it must not display the null values and the crresponding column name.
Or any other way is their like below
How i can retrieve only the selected check boxes from tht jsp file.and store in backend.
Thanks in Advance
regards,
satheesh kannan
Here is a rough example that may give you some ideas:
On the JSP page:
<%if(myData.getFirstName()!=null){%>
Your First Name'
<input type="text" name="firstName" value="<%=myData.getFirstName()%>">
<%}%>
In the servlet:
String firstName= request.getParameter("firstName");
if(firstName!=null){
//write it to the database
}
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Need help Take out the null values from the ResultSet and Create a XML file
hi,
I wrote something which connects to Database and gets the ResultSet. From that ResultSet I am creating
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takes ResultSet & Boolean value in its constructor. I am passing the ResultSet and Boolean value
from Frame1 class. I am passing the boolean value to get the null values from the ResultSet and then add those
null values to XML File. When i run the program it works alright and adds the null and not null values to
the file. But when i pass the boolean value to take out the null values it would not take it out and adds
the null and not null values.
Please look at the code i am posing. I am showing step by step where its not adding the null values.
Any help is always appreciated.
Thanks in advance.
============================================================================
Frame1 Class
============
public class Frame1 extends JFrame{
private JPanel contentPane;
private XQuery xQuery1 = new XQuery();
private XYLayout xYLayout1 = new XYLayout();
public Document doc;
private JButton jButton2 = new JButton();
private Connection con;
private Statement stmt;
private ResultSetToXML rstx;
//Construct the frame
public Frame1() {
enableEvents(AWTEvent.WINDOW_EVENT_MASK);
try {
jbInit();
catch(Exception e) {
e.printStackTrace();
//Component initialization
private void jbInit() throws Exception {
//setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
contentPane = (JPanel) this.getContentPane();
xQuery1.setSql("");
xQuery1.setUrl("jdbc:odbc:SCANODBC");
xQuery1.setUserName("SYSDBA");
xQuery1.setPassword("masterkey");
xQuery1.setDriver("sun.jdbc.odbc.JdbcOdbcDriver");
contentPane.setLayout(xYLayout1);
this.setSize(new Dimension(400, 300));
this.setTitle("Frame Title");
xQuery1.setSql("Select * from Pinfo where pid=2 or pid=4");
jButton2.setText("Get XML from DB");
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
catch(java.lang.ClassNotFoundException ex) {
System.err.print("ClassNotFoundException: ");
System.err.println(ex.getMessage());
try {
con = DriverManager.getConnection("jdbc:odbc:SCANODBC","SYSDBA", "masterkey");
stmt = con.createStatement();
catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jButton2_actionPerformed(e);
contentPane.add(jButton2, new XYConstraints(126, 113, -1, -1));
//Overridden so we can exit when window is closed
protected void processWindowEvent(WindowEvent e) {
super.processWindowEvent(e);
if (e.getID() == WindowEvent.WINDOW_CLOSING) {
System.exit(0);
void jButton2_actionPerformed(ActionEvent e) {
try{
OutputStream out;
XMLOutputter outputter;
Element root;
org.jdom.Document doc;
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rstx = new ResultSetToXML(rs,true);
} //end of try
catch(SQLException ex) {
System.err.println("SQLException: " + ex.getMessage());
======================================================================================
ResultSetToXML class
====================
public class ResultSetToXML {
private OutputStream out;
private Element root;
private XMLOutputter outputter;
private Document doc;
// Constructor
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try{
String tagname="";
String tagvalue="";
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Element users = new Element("Record");
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tagvalue=rs.getString(i);
System.out.println(tagname);
System.out.println(tagvalue);
/*============if the boolean value is false it adds the null and not
null value to the file =====================*/
/*============else it checks if the value is null or the length is
less than 0 and does the else clause in the if(checkifnull)===*/
if(checkifnull){
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users.addContent((new Element(tagname).setText(tagvalue)));
else{
users.addContent((new Element(tagname).setText(tagvalue)));
else{
users.addContent((new Element(tagname).setText(tagvalue)));
root.addContent(users);
out=new FileOutputStream("c:/XMLFile.xml");
doc = new Document(root);
outputter = new XMLOutputter();
outputter.output(doc,out);
catch(IOException ioe){
System.out.println(ioe);
catch(SQLException sqle){Can someone please help me with this problem
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I am creating a report which have the claim numbers with the values CLA001,CLA111,null, null . when i preview my report it is showing some spaces for null values also. How can i avoid the spaces from the report.
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According to your description, you are experiencing the null values and infinity values when browser the calculated measure, right?
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How to find out the null values in table
hi experts,
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for eg:
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so my question is:
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hi experts,
my version is oracledb10g:
i h'd simple doubts.
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ADF 7 wrote:
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Dear all,
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You can try using Workflows for automatically replacing NULLs with any specific value.
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Null Values from a Data Source
This is more of an implementation question than a
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this behavior or found a bug with it.
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I started running into a problem with Flex Data Services throwing
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in the database it would thrown the Unknown Property error. I spent
a good chunk of the day trying to figure out what was causing this
and finally gave up and called it a day.
This morning I was reassessing what the problem was and
trying to find the differences between my database and my code and
I stumbled upon the fact that I could add no records and modify
them without a problem, however if I tried to access an existing
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I start analyzing the database and found that I'd configured
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that I created with the database had null values, however, any of
the values inserted from Flex were inserted as blank values. As
matching my action script class as clientaddress1 = ""; So, upon
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Also, if any of the properties in the database are null it
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properties.
I can resolve the problem by not using null values in the
database, but...what sort of effect would this have on someone
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Also, if a Flex guru could explain the reasoning for this
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Chris MaloneyI realize that I didn't clarify that I am using ColdFusion
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package com.generated
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[RemoteClass(alias="components.generated.clients.Clients")]
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public var clientaddress2:String = "";
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MadhuHi,
If you are using an inputText component to display a Character Large Object (CLOB), then you will need to create a custom converter that converts the CLOB to a String.
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Very Urgent.
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ManoHi Mario.
Assuming that you want to avoid uploading of records having
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Hello Everyone,
How to update zero to a column value when record does not exist in table but should display the column value when it exists in table
Regards
Regards Gautam SAs per my understanding...
You Would like to see this
Code:
SELECT COALESCE(Salary,0) from Employee;
Regards
Shivaprasad S
Please mark as answer if helpful
Shiv
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