private void createTable() {
        String tableName = "SystemInfo";
        
        query = "CREATE TABLE IF NOT EXISTS " + tableName + " " +
                "( " +
                "  Id             INTEGER AUTO_INCREMENT PRIMARY KEY, " +
                "  Hours          INTEGER, " + 
                "  Minutes        INTEGER, " + 
                "  HostName       VARCHAR(30), " + 
                "  NoSensors      INTEGER  " +
                ")";
        
        int status = 0;
        
        try {
            qryStatement = conn.createStatement();
            status = qryStatement.executeUpdate(query);
        }
        catch(SQLException ex) {
            ex.printStackTrace();
        }
    }