using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.Odbc;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        string cmd = "UPDATE accounts SET premdays = premdays + 7 ";

        private void button1_Click(object sender, EventArgs e)
        {
            OdbcConnection Connection = new OdbcConnection("Driver={MySQL ODBC 5.1 Driver};Server=localhost;Database=Server; User=root;Password=infernal@77;Option=3;");
            Connection.Open();
            OdbcCommand Command = new OdbcCommand(cmd, Connection);
            OdbcDataReader Reader = Command.ExecuteReader();
            MessageBox.Show("Complete");
            Connection.Close();
        }
    }
}