SELECT DATEDIFF(second,log.start_time,log.end_time)
as seconds
from log
where log.log_id = "some crazy UUID";
,但我得到一個錯誤,因爲DATEDIFF()
不接受任何格式EXPR像第二。
所以,我想,
SELECT second(DATEDIFF(second,log.start_time,log.end_time))
as seconds
from log
where log.log_id = "some crazy UUID";
但是,這並不格式化工作之一。
http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_datediff – 2011-03-16 15:57:12