mysql 查询开始、结束时间差,并进行时间汇总
select SEC_TO_TIME( sum(TIME_TO_SEC(TIMEDIFF(a.endDate,a.startDate))) ) aa
from attendfilltb a,
usertb u
where
a.declarationTypeId= '1355710471434'
and a.createUid = u.id
and u.empId = '1363075075516';
TIMEDIFF --计算时间差
TIME_TO_SEC 时间转
sum 汇总
SEC_TO_TIME 转