public ProduktBatchDTO getProduktBatch(int pbId) throws DALException {
		ResultSet rs = Connector.doQuery("SELECT * FROM produktbatch WHERE pb_id = " + pbId);
		try {
			if (!rs.first()) throw new DALException("Produktbatchen " + pbId + " findes ikke");
			return new ProduktBatchDTO (rs.getInt(1), rs.getInt(2), rs.getInt(3));
		}
		catch (SQLException e) {throw new DALException(e); }
	}