data should not repeat in the drop down list when it is loading dynamically from database

data should not repeat in the drop down list when it is loading dynamically from database

selDept.jsp

<%@page import="java.sql.*"%>
     <html>
          <head>  
          <script language="javascript" type="text/javascript">  
          var xmlHttp  
          var xmlHttp
          function showEmp(str){
          if (typeof XMLHttpRequest != "undefined"){
          xmlHttp= new XMLHttpRequest();
          }
          else if (window.ActiveXObject){
          xmlHttp= new ActiveXObject("Microsoft.XMLHTTP");
          }
          if (xmlHttp==null){
          alert("Browser does not support XMLHTTP Request")
          return;
          } 
          var url="selEmp.jsp";
          url +="?count=" +str;
          xmlHttp.onreadystatechange = stateChange;
          xmlHttp.open("GET", url, true);
          xmlHttp.send(null);
          }

          function stateChange(){   
          if(xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){   
          document.getElementById("emp").innerHTML=xmlHttp.responseText   
          }   
          }
          </script>  
          </head>  
          <body>  
          <select name='dept' onchange="showEmp(this.value)">  
           <option value="none">Select</option>  
        <%
     Class.forName("com.mysql.jdbc.Driver").newInstance();  
     Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","root");  
     Statement stmt = con.createStatement();  
     ResultSet rs = stmt.executeQuery("Select * from dept");
     while(rs.next()){
         %>
          <option value="<%=rs.getString("DEPT_NO")%>"><%=rs.getString("DEPT_NAME")%></option>  
          <%
     }
         %>
          </select>  
          <br>  
          <div id='emp'>  
          <select name='emp' >  
          <option value='-1'></option>  
          </select>  
          </div>  
          </body> 
          </html>


selEmp.jsp

    <%@page import="java.sql.*"%>
    <%
    String no=request.getParameter("count");  
     String buffer="<select name='emp' ><option value='-1'>Select</option>";  
     try{
     Class.forName("com.mysql.jdbc.Driver").newInstance();  
     Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","root");  
     Statement stmt = con.createStatement();  
     ResultSet rs = stmt.executeQuery("Select * from emp where DEPT_NO='"+no+"' ");  
       while(rs.next()){
       buffer=buffer+"<option value='"+rs.getString(1)+"'>"+rs.getString("EMP_NAME")+"</option>";  
       }  
     buffer=buffer+"</select>";  
     response.getWriter().println(buffer); 
     }
     catch(Exception e){
         System.out.println(e);
     }
     %>
Data base tables are

dept

CREATE TABLE `dept` (                     
          `DEPT_NO` int(100) default NULL,        
          `DEPT_NAME` varchar(255) default NULL   
        );

emp

CREATE TABLE `emp` (                                      
          `EMP_NO` int(10) NOT NULL auto_increment,               
          `EMP_NAME` varchar(100) default NULL,                   
          `DESIGNATION` varchar(100) default NULL,                
          `JOINING_DATE` date default NULL,                       
          `SALARY` int(100) default NULL,                         
          `DEPT_NO` int(100) default NULL,                        
          `DEPT_NAME` varchar(100) default NULL,                  
          PRIMARY KEY  (`EMP_NO`)                                 
        );

The above code is working for getting the data dynamically for database but my problem is in the list the same department names are repeatedly adding when ever we insert the same same name (i.e when ever in the registration i give for 4 employees same department name then that name appears for 4 times )actually it should not happen.When once that name is inserted another time it should not come only once it has to come and the persons who are working in that department has to come.

I hope you understand my question. if the posting of the question is not proper please forgive me.I rather tried to place it right. Please help me out and send the code as soon as possible. Thank you in advance

View Answers









Related Tutorials/Questions & Answers:
data should not repeat in the drop down list when it is loading dynamically from database
data should not repeat in the drop down list when it is loading dynamically... for loading the data dynamically from the data base but my problem is it is retrieving the whole department field from the data base (i.e in the drop down list
data should not repeat in the drop down list when it is loading dynamically from database
data should not repeat in the drop down list when it is loading dynamically from database  selDept.jsp <%@page import="java.sql.*"%>... the data dynamically for database but my problem is in the list the same
Advertisements
data should not repeat in the drop down list when it is loading dynamically from database
data should not repeat in the drop down list when it is loading dynamically..._NO`) ); the data is coming from the database but when we give same department name it is repeting i.e if we enter
how to retreive data dynamically from mysql to drop down list
how to retreive data dynamically from mysql to drop down list   sir... fron end using jsp , after storing the data successfully .i want to retrieve the data of a particular column in a table into drop down list dynamically
view data from database using drop down list
view data from database using drop down list  hi i want to view the data from database by selecting a value in a drop down list. for an example drop down list have picture element.when click it select pictures from the database
retrive the data from access database to drop down list box in jsp
retrive the data from access database to drop down list box in jsp  hai, im new to jsp now im using the jsp along with access database.in table i load all the data's i need to retrive the data from database to dropdown list box
Drop down list from database
Drop down list from database  Hi, Can I know how do we get the drop down list from database? Eg: select country--select state--select district--so... * from country"); while(rs.next()){ %> <option value="<
The code for retrieving data from database into Drop Down List.
The code for retrieving data from database into Drop Down List.  <% DataSource data = new MysqlDataSource(); Connection con... to MySQL"); PreparedStatement pre = con.prepareStatement("select * from
how to make drop down list in JSF & fetch data Item from database
how to make drop down list in JSF & fetch data Item from database  how to make drop down list in JSF & fetch data Item from database
to update drop down list value when selected from website
to update drop down list value when selected from website  hi help me, i want to insert value into db when i select from a drop down list...=mysql_query("select * from age order by Age_Desc"); while($row_list=mysql_fetch
to update drop down list value when selected from website
to update drop down list value when selected from website  hi help me, i want to insert value into db when i select from a drop down list...=mysql_query("select * from age order by Age_Desc"); while($row_list=mysql_fetch
to update drop down list value when selected from website
to update drop down list value when selected from website  hi help me, i want to insert value into db when i select from a drop down list...=mysql_query("select * from age order by Age_Desc"); while($row_list=mysql_fetch
how to add data dynamically from database into a dropdown list in a jsp
how to add data dynamically from database into a dropdown list in a jsp ... of the persons who work in that department.The values into the drop down list should... and department fields also.I have a create an jsp page in which there should 2 drop down
How to send the data selected from drop down menu from html page to sql 2005 database.
How to send the data selected from drop down menu from html page to sql 2005... by user from html drop down menu such as check-in date for hotel reservation system ,how can I save these data in database and how to retrieve later .Thanks
store values of drop down list box in database
store values of drop down list box in database  how to store values of drop down list box in oracle database in jsp?I have information inserting form where i have date of birth as drop down list box
Display related data in other drop down list on selecting one data in one drop down list
Display related data in other drop down list on selecting one data in one drop down list  How to display related datas in dropdown list from database on selecting one data in previous dropdownlist in Java Server Page
How to insert multiple drop down list data in single column in sql database using servlet
How to insert multiple drop down list data in single column in sql database using servlet  i want to insert date of birth of user by using separate drop down list box for year,month and day into dateofbirth column in sql server
I want to display the quantity of the selected item of a drop down list in a textbox. The data is stored in database.
I want to display the quantity of the selected item of a drop down list in a textbox. The data is stored in database.  The code for retrieving data from database into Drop Down List. <% DataSource data = new
display data from database in textbox when id entered in textbox
display data from database in textbox when id entered in textbox  i wanted to enter data in textbox .depending on entered data in textbox data from database should be displayed dynamically in textbox
how to import values from database to the drop down box
how to import values from database to the drop down box   hi iam... employee page i kept a drop down box for employee Ids i want all employee IDs will display in the drop down box please help me with the code
dynamic drop down list
dynamic drop down list  I want to create 2 drop down list, where it takes value from database and the two list are dependent..means if I select a particular value from one the other list is developed accordingly..depending
Get values in drop down list
Get values in drop down list  Pls provide me jsp code to get values in drop down list from another table's field. my project has customer registration and company registration pages..... when i insert data in company
JSP Get Data Into Dropdown list From Database
JSP Get Data Into Dropdown list From Database In this section we will discuss about how to fetch data dynamically into the dropdown list in JSP... for fetching data from the database and set it into the dropdown list in JSP
drop down list in Struts
drop down list in Struts  How to create a drop down list in Struts
validation for drop down list
validation for drop down list  Hi all I have a form, it contain 12 drop down list. Each drop down has 1 to 5 values,i need to validate this form. the following condition should be true. 1.you can choose only 3 times 5 value. 2
Dependent drop down list
dependent drop down list is used my code is successful but when i select class from first drop down list all the data get lossed means the value entered in fields before drop down list get blank.what can i do for this? This is the code
insert data using drop down box in java into database postgresql
insert data using drop down box in java into database postgresql  can... data into database using an drop down box .....as i m using eclipse as jdbc and postgresql as data base syntax which i m using is like:- java class
insert data using drop down box in java into database postgresql
insert data using drop down box in java into database postgresql  can... data into database using an drop down box .....as i m using eclipse as jdbc and postgresql as data base syntax which i m using is like:- java class
insert data using drop down box in java into database postgresql
insert data using drop down box in java into database postgresql  can... data into database using an drop down box .....as i m using eclipse as jdbc and postgresql as data base syntax which i m using is like:- java class
insert data using drop down box in java into database postgresql
insert data using drop down box in java into database postgresql  can... data into database using an drop down box .....as i m using eclipse as jdbc and postgresql as data base syntax which i m using is like:- java class
jsp code for a drop down box to retrive value from database
jsp code for a drop down box to retrive value from database  my project needs to get the value from database in to the drop down box..... pls give me code for that ..... tan q   1)login.jsp: <html> <script>
Add/Remove Rows Dynamically with drop down list in html table using php
Add/Remove Rows Dynamically with drop down list in html table using php  Here Is My Code. I want to give and get the id of drop down list. Can Anyone..."); $result=mysql_query("select * from test"); while($row
how to insert list box in java script dynamically and elements retrieving from database like oracle
how to insert list box in java script dynamically and elements retrieving from database like oracle  Hi, how to dynamically increase size of list box in javascript when elements retrieving from database.. That is whenever I
Pls provide me jsp code to get values in drop down list from another table's field....
Pls provide me jsp code to get values in drop down list from another table's... in customer registration page and should be shown in drop down box in front end... pages..... when i insert data in company registration .. it ll have company id
display table details when selecting table name in drop down liat
display table details when selecting table name in drop down liat  Hello, Am having problem in my project... i want to retrive the data from mysql... of tables from the database to the dropdown list... if i select the particular table
Dependant & dynamic drop down list
Dependant & dynamic drop down list  I don't know this should be in this or AJAX forum. I have one dynamic drop down list from data base (working... on the values selected by user in first drop down list. How to achieve this ?   
how to retrieve the id value itself from the access database to drop down listbox in jsp
how to retrieve the id value itself from the access database to drop down listbox in jsp  how to retrieves the id which is an int datatype, from access database to drop down list box in jsp...plz send the code for that.....plz
auto suggest where the data should come from database - Ajax
auto suggest where the data should come from database  auto suggest in (java script or ajax)where the data should come from one of the table in database thnks in advance MamthaDatta  Hi Friend, You can visit
how to insert list box in java script dynamically and elements retrieving from database like oracle
how to insert list box in java script dynamically and elements retrieving from database like oracle  hi all, how can i insert elements into java script list box retrieving from Database. whenever I insert any element in the Db
how to store multiple values from drop down in database where i am using java struts 1.3
how to store multiple values from drop down in database where i am using java struts 1.3  hii, i am coding a form where i need a keyskills attribute where i have to select multiple keyskills. but it is taking only one valuee.. i
Excel Cell Drop Down List
Excel Cell Drop Down List In this section, you will learn how to validate data entered in a cell and provide a drop down list of possible values to the user... in a excel sheet's cell and also can provide drop list of possible value
Loading a jsp page (with record from database) from another jsp page
Loading a jsp page (with record from database) from another jsp page  ... in Search.jsp say Serial no,year and a button VIEW DATA. I want, when I click... with records from database(against Serial no and year).That is, as soon
dynamic drop down list box - Java Beginners
dynamic drop down list box  hi all , I want to dynamically populate a drop down box from an sql query in a servlet program, using only html...(); ResultSet rs = st.executeQuery("select * from Combolist"); List ulist = new
Dynamically Update textbox from database
Dynamically Update textbox from database  I have a database as shown below.(database created using SQL Server 2005) name : george,simon address... to that typed value from database has to be displayed in another text box
Select functionality of drop down list - Struts
(in struts application) in which if user select HIDE from the drop down list... have Drop down list having element Test1,Test2,Test3,HIDE and one Text msg box for entering Age,Now if user select "HIDE" from drop-down list the below text
jsp login code ... when username , drop down box and password is correct
value is correct.... the drop down box values should be retrieved from database...jsp login code ... when username , drop down box and password is correct ....... the value is retrieved from database into combo box..... but the validation
Dependant & dynamic drop down list - Follow up
Dependant & dynamic drop down list - Follow up  Thanks for your answer. As per your answer This will select only ONE row (country) from first drop down. In my case user can choose more than one row , which is then sent to next
automatically move next page when data fetched from database is stored in text field
automatically move next page when data fetched from database is stored in text... are stored in database wherein when the in the first text field the data is already... from database and entered the next page should load without the user clicking
how to make a radiobutton selected when retrieving data from database using struts framework and spring jdbc
how to make a radiobutton selected when retrieving data from database using struts framework and spring jdbc  how to make a radio button selected when retrieving data from database using struts framework and spring jdbc
how to dynamically add text boxes with add and remove link based on drop down choices, if a particular choice is selected.
how to dynamically add text boxes with add and remove link based on drop down choices, if a particular choice is selected.  how to dynamically add text boxes with add and remove link based on drop down choices, if a particular

Ads