public void dbConnect(String db_connect_string,
            String db_userid,
            String db_password) {
        try {
            t1 = new Date();
            Class.forName("net.sourceforge.jtds.jdbc.Driver");
            Connection conn = DriverManager.getConnection(db_connect_string,db_userid, db_password);
            System.out.println("connected"); 
            Statement statement = conn.createStatement();
            String queryString = "select * from Device where Name='SEP001F9E25839F'";
            ResultSet rs = statement.executeQuery(queryString);t2 = new Date();
            while (rs.next()) {
                System.out.println(rs.getString("Description"));
            }
            
        System.err.println(abs(t2.getTime() - t1.getTime()));
            
        } catch (Exception e) {
            e.printStackTrace();
        }
    }