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find the difference between two days
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----------------------------------Vertica-------------------------------------------------------------------------------------------------------- | |
select | |
datediff('year', '1988-06-21', Now()) as YearsBetweenDates, | |
datediff('quarter', '1988-06-21', Now()) as QuartersBetweenDates, | |
datediff('month', '1988-06-21', Now()) as MonthsBetweenDates, | |
datediff('day', '1988-06-21', Now()) as DaysBetweenDates, | |
datediff('hour', '1988-06-21', Now()) as HoursBetweenDates, | |
datediff('minute', '1988-06-21', Now()) as MinutesBetweenDates, | |
datediff('second', '1988-06-21', Now()) as SecondsBetweenDates, | |
timestampdiff('year', '2015-08-22', Now()) as YearsBetween, | |
timestampdiff('month', '2015-08-22', Now()) as MonthsBetween, | |
timestampdiff('week', '2015-08-22', Now()) as WeeksBetween, | |
timestampdiff('day', '2015-08-22', Now()) as DaysBetween, | |
timestampdiff('hour', '2015-08-22', Now()) as HoursBetween, | |
timestampdiff('minute', '2015-08-22', Now()) as MinutesBetwee | |
----------------------------------SQL Server----------------------------------------------------------------------------------------------------- | |
select | |
datediff(year, '1988-06-21', getdate()) as YearsBetweenDates, | |
datediff(quarter, '1988-06-21', getdate()) as QuartersBetweenDates, | |
datediff(month, '1988-06-21', getdate()) as MonthsBetweenDates, | |
datediff(day, '1988-06-21', getdate()) as DaysBetweenDates, | |
datediff(hour, '1988-06-21', getdate()) as HoursBetweenDates, | |
datediff(minute, '1988-06-21', getdate()) as MinutesBetweenDates, | |
datediff(second, '1988-06-21', getdate()) as SecondsBetweenDates | |
DaysBetween |YearsBetweenDates |QuartersBetweenDates |MonthsBetweenDates |DaysBetweenDates |HoursBetweenDates |MinutesBetweenDates |SecondsBetweenDates | | |
------------|------------------|---------------------|-------------------|-----------------|------------------|--------------------|--------------------| | |
10764 |29 |117 |353 |10764 |258357 |15501421 |930085304 | | |
#------------------------------------MySQL---------------------------------------------------------------------------------------------------------- | |
select | |
datediff(Now(), '1988-06-21') as DaysBetween, | |
timestampdiff(year, '1988-06-21', Now()) as YearsBetweenDates, | |
timestampdiff(quarter, '1988-06-21', Now()) as QuartersBetweenDates, | |
timestampdiff(month, '1988-06-21', Now()) as MonthsBetweenDates, | |
timestampdiff(day, '1988-06-21', Now()) as DaysBetweenDates, | |
timestampdiff(hour, '1988-06-21', Now()) as HoursBetweenDates, | |
timestampdiff(minute, '1988-06-21', Now()) as MinutesBetweenDates, | |
timestampdiff(second, '1988-06-21', Now()) as SecondsBetweenDates | |
DaysBetween |YearsBetweenDates |QuartersBetweenDates |MonthsBetweenDates |DaysBetweenDates |HoursBetweenDates |MinutesBetweenDates |SecondsBetweenDates | | |
------------|------------------|---------------------|-------------------|-----------------|------------------|--------------------|--------------------| | |
10764 |29 |117 |353 |10764 |258357 |15501421 |930085304 | | |
------------------------------------PostgreSQL--------------------------------------------------------------------------------------------------------- | |
select | |
age(Now(), '1988-06-21') as YearsBetweenDates | |
yearsbetweendates | | |
-------------------------------------------------------| | |
29 years 5 mons 19 days 21 hours 0 mins 39.466046 secs | | |
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