JDBC Update Statement Example
In this tutorial you will know how to update the record of a table using JDBC update statement
In this tutorial you will know how to update the record of a table using JDBC update statementJDBC Update Statement Example
JDBC update statement is used to update the records of a table using java application program. The Statement object returns an int value that indicates how many rows updated.
At first create table named student in MySql database and inset values into it as.
CREATE TABLE student (
RollNo int(9) PRIMARY KEY NOT NULL,
Name tinytext NOT NULL,
Course varchar(25) NOT NULL,
Address text );
JDBCUpdateExample.java
package oseindia.net;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
public class JDBCUpdateExample {
public static void main(String[] args) throws SQLException {
Connection con = null; // connection reference variable for getting
// connection
Statement stmt = null; // Statement reference variable for query
// Execution
String conUrl = "jdbc:mysql://localhost:3306/";
String driverName = "com.mysql.jdbc.Driver";
String databaseName = "student";
String usrName = "root";
String usrPass = "root";
try {
// Loading Driver
Class.forName(driverName);
} catch (ClassNotFoundException e) {
System.out.println(e.toString());
}
try {
// Getting Connection
con = DriverManager.getConnection(conUrl + databaseName, usrName,
usrPass);
// Creating Statement for query execution
stmt = con.createStatement();
// creating Query String
String query = "UPDATE student SET Name='John', Address='New York', Course='M.Tech' WHERE RollNo=1";
// Updating Table
int rows = stmt.executeUpdate(query);
System.out.println(rows + " Rows Updated Successfully....");
} catch (Exception e) {
System.out.println(e.toString());
} finally {
// Closing Connection
con.close();
stmt.close();
}
}
}
When you run this application it will display message as shown below:| 1 Rows Updated Successfully.... |
