Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class Main {
    public static void main(String[] argv) throws Exception {

        Class.forName("com.mysql.jdbc.Driver");
        Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/jdbctutorial", "root", "root");

        Statement st = con.createStatement();
        int n = st.executeUpdate("ALTER TABLE mytable ADD UNIQUE( colName)");
        System.out.println("Query OK, " + n + " rows affected.");
    }
}