timediff大于2分钟

Question

I am trying to write a query where I can eliminate a timediff of less than 2 minutes. I have tried variations on the following which returns no results

 timediff(sessions.producer_on,sessions.producer_off)>'00:02:00'

the timediff without the > works fine and returns all results - I am having difficulty with the >00:02:00 condition. Can anyone help - many thanks

Answer 1

You need to extract the minute from the time then compare it.

minute(timediff(sessions.producer_on,sessions.producer_off)) > 2 AND 
hour(timediff(sessions.producer_on,sessions.producer_off)) = 0

Also it may be necessary to make sure that the hour is 0 since only when the hour is zero does the minute actually matter.

Answer 2

This is probably the "old way" but it eliminates the need to check hours, days, etc.

UNIX_TIMESTAMP(fieldOne) - UNIX_TIMESTAMP(fieldTwo) < 120

You can also use NOW() in place of a field name.

Answer 3

Change it to

timediff(sessions.producer_on,sessions.producer_off) > TIME('00:02:00')

and it should work.

Answer 4

SELECT * FROM e_email_otp WHERE TIMEDIFF('2019-01-11 10-46-19',`2019-01-11 10-45-19`) <'00:02:00.000000'