update zyb_student_push sp set sp.type = 4 where sp.type = 0 and exists(select 1 from scon_homework_picture hp where to_days(hp.create_time) = to_days(sp.push_time) and hp.vip_id = sp.vip_id and hp.is_delete = 0) select date(create_time) from scon_homework where vip_id = #{vipId} and work_type in (1,2,4) and create_time between #{beginDateTimeStr} and #{endDateTimeStr} select subject course_name, count(*) coursecount, sum(ifnull(used_time, 0)) used_time from scon_homework where work_type in (1,2,4) and vip_id = #{vipId} and create_time between #{beginTime} and #{endTime} group by subject