sum,count,group by

select sum(guid) from `sqm`.`sqm_value_quality_station` WHERE result='PASS'
GROUP BY station_code

select count(guid) from `sqm`.`sqm_value_quality_station` WHERE result='PASS'
GROUP BY station_code


select sum(guid) from `sqm`.`sqm_value_quality_station` WHERE result='PASS'
GROUP BY station_code

select count(guid) from `sqm`.`sqm_value_quality_station` WHERE result='PASS'
GROUP BY station_code
