Question

This should return 1.

SELECT DATETIMEDIFF('2011-02-15 12:00:00', '2011-02-14 12:00:00');

This should return 0.

SELECT DATETIMEDIFF('2011-02-15 12:00:00', '2011-02-14 13:00:00');

TIMEDIFF calculation doesn’t include day, month, year; DATEDIFF calculation doesn’t include hour, minute, second. How to do diff datetime?

Answer 1

will this do ?

select date1 - date2
from table

if both columns date1 and date2 are Date type

Or to get seconds

SELECT TIMESTAMPDIFF(SECOND, date1, date2)    
FROM table