鉴于以下结构和数据:
user initial_date final_date
'JOHN' '2016-05-05 18:21:51', '2016-05-05 18:50:34'
'JOHN' '2016-05-05 18:51:44', '2016-05-05 19:10:54'
考虑到2016-05-05 00:00:00
和2016-05-05 18:59:59
之间的时间段,我需要找出John在这些寄存器中花费了多少分钟:
user initial_date final_date minutes_spent
'JOHN' '2016-05-05 18:20:00', '2016-05-05 18:50:00' 30
'JOHN' '2016-05-05 18:51:00', '2016-05-05 19:10:00' 9
在第二行,结果是9,因为我的搜索时间是18:59:59,所以必须忽略19:00:00之后的时段。
答案 0 :(得分:2)
Does this work for you:
select timestampdiff(MINUTE, greatest(initial_date,$start_of_range),
least(final_date,$end_of_range)) from tbl where initial_date between
$start_of_range and $end_of_range or
final_date between $start_of_range and $end_of_range
?