Question

I have a table which has 4 columns. Date login, date logout, time login, time logout.

How can I get the difference. I tried something like this;

SUM(TIMESTAMP(date_logout, time_logout) - TIMESTAMP(date_log, time_log))

However I’m getting a really really high number and I am unable to convert it to proper time. Any hints or clues? I didn’t design the table btw 😛

Thanks in advance!

Answer 1

if you want the diff in secounds:

SUM(UNIX_TIMESTAMP(TIMESTAMP(date_logout, time_logout)) - UNIX_TIMESTAMP(TIMESTAMP(date_log, time_log)))

If you want the diff in days:

SUM(DATEDIFF(TIMESTAMP(date_logout, time_logout), TIMESTAMP(date_log, time_log)))

If you want the diff as HH:mm:ss

SUM(TIMEDIFF(TIMESTAMP(date_logout, time_logout), TIMESTAMP(date_log, time_log)))