Question

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MYSQL – datetime to seconds

If I have a datetime column in a mysql table, how can I get the difference between NOW() and that column in seconds?

Answer 1

by TIMEDIFF you can get the differense by seconds

    SELECT TIME_TO_SEC(TIMEDIFF('2007-01-09 10:24:46','2007-01-09 10:23:46'));

or this

SELECT DATEDIFF('2007-12-31 10:02:00','2007-12-30 12:01:01') * 24*60*60;
// result: 86400 the difference in seconds for days.

or:

 SELECT TIMESTAMPDIFF(SECOND,'2007-12-30 12:01:01','2007-12-31 10:02:00'); 
 // result: 79259  the difference in seconds with the time.