code: public Result<List<Data>> readByUser(AuthzTrans trans, String user, int ... yyyymm) {
  		if(yyyymm.length==0) {
  			return Result.err(Status.ERR_BadData, "No or invalid yyyymm specified");
  		}
  		Result<ResultSet> rs = readByUser.exec(trans, "user", user);
  		if(rs.notOK()) {
  			return Result.err(rs);
  		}
  		return extract(defLoader,rs.value,null,yyyymm.length>0?new YYYYMM(yyyymm):dflt);
  	}
docs: Gets the history for a user in the specified year and month
  year - the year in yyyy format
  month -  the month in a year ...values 1 - 12