Question

I have a table like this…

create table test
(
  dt datetime
)

In that table the datetime are as follows,

2011/02/02 12:55:00
2011/03/05 00:40:00
2011/02/03 00:12:00

I want to calculate sum hours,mi,ss

In a single Select query not sp.

If any one know please tell me.

Thanks …

Answer 1

You could sum the times as seconds, then convert to hours, minutes and seconds:

select TotalSeconds / 3600 as [Hours], (TotalSeconds % 3600) / 60 as [Minutes], (TotalSeconds % 3600) % 60 as [Seconds]
from
(
    select sum(datepart(hour, dt) * 3600) + sum(datepart(minute, dt) * 60) + sum(datepart(second, dt)) as TotalSeconds
    from test
) t