Re: SUM of TIMEDIFF

[Russell Dyer]

It looks like you're trying to get the number of seconds from one time to the other in an integer format. If so, try this:

SELECT SECOND(TIMEDIFF(time_start, time_end))
FROM table1;

The SECOND() function will extract the second value from a datetime value.

Please let me know if this work for you. If it didn't, please give me more details on what you're trying to get at.

Russell Dyer

Author of "MySQL in a Nutshell" (O'Reilly 2005).