Java Connection setAutoCommit Method with Example

If you commit a database, it saves all the changes that have been done till that particular point. By default, some databases commits/saves the changes done automatically.

You can turn off/on the auto-commit using the setAutoCommit() method of the Connection interface.

Parameter

This method accepts a boolean value as a parameter. If you pass true to this method it turns on the auto-commit feature of the database and, if you pass false to this method it turns off the auto-commit feature of the database.

//Turning off the auto-commit
Con.setAutoCommit(false);
//Turning on the auto-commit
Con.setAutoCommit(true);

To change the auto-commit value −

Register the driver using the registerDriver() method of the DriverManager class as −

//Registering the Driver
DriverManager.registerDriver(new com.mysql.jdbc.Driver());

Get the connection using the getConnection() method of the DriverManager class as −

//Getting the connection
String url = "jdbc:mysql://localhost/mydatabase";
Connection con = DriverManager.getConnection(url, "root", "password");

Turn off/on the auto-commit using the setAutoCommit() method as −

//Setting the auto commit on
con.setAutoCommit(true);
//Setting the auto commit off
con.setAutoCommit(false);

Following JDBC program establishes a connection with the database and turns off the auto-commit.

Example

import java.sql.Connection;
import java.sql.DriverManager;
public class Connection_setAutoCommit {
   public static void main(String args[])throws Exception {
      //Getting the connection
      String mysqlUrl = "jdbc:mysql://localhost/sampleDB";
      Connection con = DriverManager.getConnection(mysqlUrl, "root", "password");
      System.out.println("Connection established......");
      //Setting auto-commit false
      con.setAutoCommit(false);
      System.out.println("Auto commit value is: "+con.getAutoCommit());
   }
}

Output

Connection established......
Auto commit value is: false