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JDBC Prepared Statement Update

The Tutorial illustrates a code that help you in understanding JDBC Prepared Statement Update.


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JDBC Prepared Statement Update


The Update  Statement in SQL updates the existing records in a table. In JDBC the Prepared Statement Update is used to update the SQL statement, using where clause, that specify which records is updated.

Understand with Example

The Tutorial illustrates a code that help you in understanding JDBC Prepared Statement Update. The code include a class Jdbc Prepared Statement, this class include a main method ( ), Inside the main method we have a list of steps -

 Importing a package java.sql - This package provides you a network interface, that enables you to communicate between front end application -back end. Loading a driver by calling a class.forName ( ),that accept a driver class as argument.

  DriverManager.get Connection ( ) -The Driver Manager call a getConnection ( ) method, return you a connection object, built a connection between url and database.

 The connection object call a prepareStatement ( ),that is used to update the table stu using where clause, specify the name of record to be updated at runtime. The set String XXX return you a set value in the place of question mark holder. The executeQuery ( ) return you the record set from a updated table in the database.

  Finally the println print the updated table from the database in output. The catch block caught the exception in try block.

import java.sql.*;

public class JdbcPreparedstatementUpdate {

  public static void main(String args[]) {

  Connection con = null;
  PreparedStatement pst = null;
  ResultSet rs = null;

  String url = "jdbc:mysql://localhost:3306/";
  String db = "komal";
  String driver = "com.mysql.jdbc.Driver";
  String user = "root";
  String pass = "root";

  try {
  con = DriverManager.getConnection(url + db, user, pass);
  pst = con.prepareStatement("update stu set class=? where id =?");
  pst.setString(1, "11");
  pst.setString(2, "1");
  pst = con.prepareStatement("select * from stu");
  rs = pst.executeQuery();

  while ( {
  System.out.print(rs.getString(1) + "\t");
  System.out.print(rs.getString(2) + "\t ");

  } catch (Exception e) {


Id	Name	Class
1	komal	 11
2	santosh	 11
3	rakesh	 9
4	ajay	 11
5	bhanu	 10

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JDBC Prepared Statement Update

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August 28, 2013

sir,if we want to update two or more attributes.