Juan Luis Torralbo at 9:57 1 Use justifyhours on the interval difference. Now, to work with TIMESTAMP and INTERVAL, you need to understand these few simple rules : 1.
Postgresql timestamp difference in minutes full#
I'd expect an example to be something like: 'I have the timestamp ' 20:59:08', and I want the result to be 59, because it's 59 minutes since the latest full hour'. The difference will be of the type interval, which means you'll see it in days, hours, minutes, and seconds. 1 No, I'm afraid this doesn't help a bit, because that's not an example. something that happens on the 15th of each month or the 2nd Thursday of leap years). To calculate the difference between the timestamps in PostgreSQL, simply subtract the start timestamp from the end timestamp. RETURNS TIMESTAMP WITHOUT TIME ZONE AS $$ The thing is that the hours and minutes have to be justified, but the days can be more than 30 or 31. However, TIMESTAMP is far better for real calendar calculations (e.g. CREATE OR REPLACE FUNCTION round_minutes( TIMESTAMP WITHOUT TIME ZONE, integer) To get the difference in minutes, choose MINUTE for the difference. To get the difference in seconds as we have done here, choose SECOND. The unit argument can be MICROSECOND, SECOND, MINUTE, HOUR, DAY, WEEK, MONTH, QUARTER, or YEAR. In Postgresql, the difference between two timestamps in minutes can be calculated by providing the epoch as a sub-field to the Extract function, and the result from the Extract will be divided by 60 to get the minutes. This here are my sets of functions that will round, floor, and ceiling timestamps. To calculate the difference between the timestamps in MySQL, use the TIMESTAMPDIFF (unit, start, end) function. Postgresql difference between two timestamps in minutes. Postgresql difference between two timestamps in minutes. In trying to use Peter's answer above to create ceiling and floor functions I found that you have to take into account the seconds too when calling the rounding function.
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