On Mon, 28 Aug 2006 07:20:02 -0600 Michael Fuhr <mike@xxxxxxxx> 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
