Deleting a Row from a Database Table : Statement « Database « Java Tutorial

1. Java Tutorial
2. Database
3. Statement

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

public class Main {
  public static void main(String[] argv) throws Exception {
    String driverName = "com.jnetdirect.jsql.JSQLDriver";
    Class.forName(driverName);

    String serverName = "127.0.0.1";
    String portNumber = "1433";
    String mydatabase = serverName + ":" + portNumber;
    String url = "jdbc:JSQLConnect://" + mydatabase;
    String username = "username";
    String password = "password";

    Connection connection = DriverManager.getConnection(url, username, password);
    Statement stmt = connection.createStatement();
    String sql = "DELETE FROM my_table WHERE col_string='a string'";
    int deleteCount = stmt.executeUpdate(sql);
    sql = "DELETE FROM my_table WHERE col_string=?";
    PreparedStatement pstmt = connection.prepareStatement(sql);
    pstmt.setString(1, "a string");
    deleteCount = pstmt.executeUpdate();
  }
}