private void createTable() {
        query = "CREATE TABLE IF NOT EXISTS " + tableName + " " +
                "( " +
                "  Id             INTEGER AUTO_INCREMENT PRIMARY KEY, " +
                "  SessionId      INTEGER, " + 
                "  Hostname       VARCHAR(30), " +
                "  Hour           INTEGER, " + 
                "  Minute         INTEGER, " + 
                "  Day            VARCHAR(20), " +
                "  Month          VARCHAR(20), " +
                "  Year           INTEGER, " +
                "  Value          INTEGER, " + 
                "  Context        VARCHAR(20), " + 
                "  LinguisticType VARCHAR(30) " + 
                ")";
        
        int status = 0;
        
        try {
            qryStatement = conn.createStatement();
            status = qryStatement.executeUpdate(query);
        }
        catch(SQLException ex) {
            ex.printStackTrace();
        }
    }