private int insertTechnicalNetwork(Network network) {
    String query = "INSERT INTO t_networks (iid, nid, commit_date) VALUES (?, default, ?)";
    ISetter[] params = {
      new IntSetter(1, Resources.intervalID), new TimestampSetter(2, network.getCommit_date())
    };

    PreparedStatementExecutionItem ei = new PreparedStatementExecutionItem(query, params);
    addExecutionItem(ei);
    ei.waitUntilExecuted();
    return getSequenceValue("tnetwork_id_seq");
  }