On 1/17/08, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > "Fowler, Jeff" <[EMAIL PROTECTED]> wrote: > > Remember gang, if you want to know how many seconds are between two > > timestamps, you wouldn't ask for a difference in months. You'd say > > something like DATEDIFF(seconds, t1, t2). > > > > So DATEDIFF doesn't really compute the difference between > two dates.
right, because to compute the "real" difference is tricky as you have already pointed out... until someone mandates a 100 day, 10 months year, a 10 hour day, and so on. > It computes the number of date measurement > interval transitions that occur between the two dates. in other words, the function provides the rope along with mandatory warnings, and if the user/developer still wishes to hang him/herself, well, so be it. > > > > > -----Original Message----- > > From: Markus Hoenicka [mailto:[EMAIL PROTECTED] > > Sent: Thursday, January 17, 2008 3:47 PM > > To: sqlite-users@sqlite.org > > Subject: Re: [sqlite] Date arithmetic question > > > > [EMAIL PROTECTED] writes: > > > So datediff('month', '2008-02-01 23:59:59','2008-01-31 00:00:00') > > should > return 1 even though the difference is really only 1 second? > > Seems > goofy to me.... > > > > > > > well, this is one second rounded up to the next full month...If that is > > the kind of information you want to compute, it's probably not that > > goofy after all. > > > > regards, > > Markus > > > > -- > > Markus Hoenicka > > [EMAIL PROTECTED] > > (Spam-protected email: replace the quadrupeds with "mhoenicka") > > http://www.mhoenicka.de > > > > > > ------------------------------------------------------------------------ > > ----- > > To unsubscribe, send email to [EMAIL PROTECTED] > > ------------------------------------------------------------------------ > > ----- > > > > > > ----------------------------------------------------------------------------- > > To unsubscribe, send email to [EMAIL PROTECTED] > > ----------------------------------------------------------------------------- > > > > > > . > > > > ----------------------------------------------------------------------------- > To unsubscribe, send email to [EMAIL PROTECTED] > ----------------------------------------------------------------------------- > > -- Puneet Kishor http://punkish.eidesis.org/ Nelson Institute for Environmental Studies http://www.nelson.wisc.edu/ Open Source Geospatial Foundation (OSGeo) http://www.osgeo.org/ ----------------------------------------------------------------------------- To unsubscribe, send email to [EMAIL PROTECTED] -----------------------------------------------------------------------------
