I've got a query that returns a whole lot of times in H:MM:SS format. I want to sum all of these to find the total of the column. If I try:
select sum(Times) from (select timediff(time2, time1) as Times from my_table) then the value I get is
a) an integer when I was hoping for either a time or a real number of hours and
b) doesn't agree with the total if I try the same thing in Excel (the values differ by 53 hours (I think it's hours) in the examples I've tried, so it doesn't even look like rounding errors.