Group mysql query by 15 min intervals

Question

I\'ve got a monitoring system that is collecting data every n seconds (n is approximately 10 but varies). I\'d like to aggregate the collected data by 15 minute intervals.

Answer 1

Try this , grouping of records of 15 minutes interval, you can change 15*60 to the interval in seconds you need

SELECT sec_to_time(time_to_sec(datefield)- time_to_sec(datefield)%(15*60)) as intervals from tablename
group by intervals