public void add(Ontology o) throws SQLException {
    Statement stm = DBConnection.conn.createStatement();

    stm.executeUpdate("INSERT INTO Ontology VALUES ('" + o.getPrefix() + "','" + o.getUri() + "')");

    stm.close();
  }
  public void atualizaOntology(Ontology o) throws SQLException {
    Statement stm = DBConnection.conn.createStatement();

    stm.executeUpdate(
        "UPDATE Recordes SET prefix=\""
            + o.getPrefix()
            + "\""
            + "WHERE uri=\""
            + o.getUri()
            + "\"");

    stm.close();
  }