+"(SELECT sensortype FROM fieldday_sensor where sensorid=fieldday_reading.sensorid)"
+"(SELECT DISTINCT tripname FROM fieldday_trip where tripid=fieldday_reading.tripid), "
+"(SELECT DISTINCT sitename FROM fieldday_site where siteid=fieldday_reading.siteid AND tripid=fieldday_reading.tripid), "
+"(SELECT DISTINCT sectorname FROM fieldday_sector where sectorid=fieldday_reading.sectorid AND siteid=fieldday_reading.siteid AND tripid=fieldday_reading.tripid), "
+"(SELECT DISTINCT sensortype FROM fieldday_sensor where sensorid=fieldday_reading.sensorid)"