Update records from database using JDBC

In this blog we will know how to update records from database using JDBC (Java Database Connectivity) in console window.


Here we use Type-1 driver (JDBC-ODBC bridge)


Creation of dsn(database source name) for Oracle


Start-Control panel- Administrative Tools- Data Sources (ODBC)-go to system dsn tab-click add button-select a driver for which you want to set up data source (for Oracle- Oracle in XE)-select it and click finish-give any name in data source name textbox-then click ok button.


Note: - Here Username=system, Password=pintu and Dsn name=dsn1


Table Creation

Create table employee (empno int,empname varchar(50),sal int)


Example:- To update record in a table


/*To update record in a table by using Statement*/

import java.sql.*;

import java.util.*;

public class update


public static void main(String args[]) throws Exception


Scanner sc=new Scanner(System.in);


Connection con=DriverManager.getConnection("jdbc:odbc:dsn1","system","pintu");

Statement stmt=con.createStatement();

System.out.print("Enter the Employee number: ");

int x=sc.nextInt();

System.out.print("Enter the new salary : ");

int z=sc.nextInt();

System.out.print("Enter the Employee name: ");

String y=sc.next();

String sql="update employee set sal="+z+",empname='"+y+"' where empno="+x;

int no=stmt.executeUpdate(sql);


System.out.println(no+" Records Successfully Updated");


System.out.println("Invalid employee number");






Javac update.java

Java update



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