docs: static void initSingleParam(String key, String initValue, DbConn cnx)
      {
          try
          {
              cnx.runSelectSingle("globalprm_select_by_key", 2, String.class, key);
              return;
          }
          catch (NoResultException e)
          {
              GlobalParameter.create(cnx, key, initValue);
          }
          catch (NonUniqueResultException e)
          {
              // It exists! Nothing to do...
          }
      }