Comments on: Drop seconds when querying MySQL timestamps http://matthewbass.com/2010/06/25/drop-seconds-when-querying-mysql-timestamps/ Musings on software and life... Sat, 25 Feb 2012 01:12:00 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Gilson http://matthewbass.com/2010/06/25/drop-seconds-when-querying-mysql-timestamps/comment-page-1/#comment-31253 Gilson Tue, 29 Jun 2010 06:26:06 +0000 http://matthewbass.com/?p=600#comment-31253 This might do the trick. <code> def end_of_minute(time) time += 59 - time.sec end </code> or this if you want to use the "<" instead "<=" <code> def next_minute(time) time += 60 - time.sec end </code> This might do the trick.

def end_of_minute(time)
time += 59 - time.sec
end

or this if you want to use the “<" instead "<="

def next_minute(time)
time += 60 - time.sec
end

]]> By: Matthew Bass http://matthewbass.com/2010/06/25/drop-seconds-when-querying-mysql-timestamps/comment-page-1/#comment-31248 Matthew Bass Mon, 28 Jun 2010 13:21:16 +0000 http://matthewbass.com/?p=600#comment-31248 Alex, yes, it should work for minutes, hours... any unit that can be extracted from a timestamp with a MySQL function. Paul, querying for a minute ahead is a good idea, but the time I'm passing to the query isn't static... it's the current time. So I would need to perform some sort of calculation to determine if the current time is within 15:00:00 to 15:00:59 and add 1 minute if it was. Alex, yes, it should work for minutes, hours… any unit that can be extracted from a timestamp with a MySQL function.

Paul, querying for a minute ahead is a good idea, but the time I’m passing to the query isn’t static… it’s the current time. So I would need to perform some sort of calculation to determine if the current time is within 15:00:00 to 15:00:59 and add 1 minute if it was.

]]> By: Paul Barry http://matthewbass.com/2010/06/25/drop-seconds-when-querying-mysql-timestamps/comment-page-1/#comment-31213 Paul Barry Fri, 25 Jun 2010 22:18:47 +0000 http://matthewbass.com/?p=600#comment-31213 This is going to be slow because you won't be able to use an index on created_at. Why not just query for select * from records where created_at < '2010-06-25 15:01:00'? This is going to be slow because you won’t be able to use an index on created_at. Why not just query for select * from records where created_at < '2010-06-25 15:01:00'?

]]> By: Alex http://matthewbass.com/2010/06/25/drop-seconds-when-querying-mysql-timestamps/comment-page-1/#comment-31212 Alex Fri, 25 Jun 2010 22:04:07 +0000 http://matthewbass.com/?p=600#comment-31212 Good idea, i guess it works with minutes, hours etc. the same way ? ) Good idea, i guess it works with minutes, hours etc. the same way ? )

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