Question

Is there a way to work out the time since a timestamp on a record purely using a MySQL query? So basically something like: TIMESINCE(record.timeupdated) as timeSinceUpdaye I’m passing the result straight to encodeJson() so don’t what to do the calculation in PHP. Thank!

Answer 1

select 
    timestampdiff(SECOND, now(), record.timeupdated) as timeSinceUpdate 
from record;

Will return the number of seconds since the last update.

The legal values for unit are as follows: MICROSECOND (microseconds), SECOND, MINUTE, HOUR, DAY, WEEK, MONTH, QUARTER, or YEAR. See timestampdiff(unit,datetime_expr1,datetime_expr2) for details.