สอบถามเกี่ยวกับระบบ จดจำ Cookie หน่อยครับ ASP.Net ภาษา C#

		strConnString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("database/mydatabase.mdb") + ";Jet OLEDB:Database Password=;";
		objConn.ConnectionString = strConnString;
		objConn.Open();

		int intNumRows = 0;
		strSQL = "SELECT COUNT(*) FROM table_name WHERE ID = '" + Request.QueryString["id"] + "' ";
		objCmd = new OleDbCommand(strSQL, objConn);
		intNumRows = Convert.ToInt32(objCmd.ExecuteScalar());

		if (intNumRows > 0) {
			// Found
			Response.Redirect("Page1.aspx");
		} else {
			// Not Found
		}

		objConn.Close();
		objConn = null;