Re: Convert time to millisec?
От | Bjørn T Johansen |
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Тема | Re: Convert time to millisec? |
Дата | |
Msg-id | 20060828161812.55124773@pennywise обсуждение исходный текст |
Ответ на | Re: Convert time to millisec? (Michael Fuhr <mike@fuhr.org>) |
Ответы |
Re: Convert time to millisec?
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Список | pgsql-general |
On Mon, 28 Aug 2006 07:20:02 -0600 Michael Fuhr <mike@fuhr.org> wrote: > On Mon, Aug 28, 2006 at 10:48:47AM +0200, Bjørn T Johansen wrote: > > select sum(Til - Fra) as total from Log_stop where OrdreID = 3434 > > > > but I would like the result to be in milliseconds, is this possible? If so, how? > > (the fields Til and Fra is of type Time) > > You could use extract(epoch from <interval>) to get the number of > seconds (with fractional part) in an interval, then multiply by > 1000 to get milliseconds. Example: > > select extract(epoch from sum(Til - Fra)) * 1000.0 ... > That did the trick... Thx... :) Do you know if this is supported on older versions of PostgreSQL as well? (eg. 7.4.x) BTJ
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