Re: Datetime operators (was: Re: [SQL] Another Date question)

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От Andy Lewis
Тема Re: Datetime operators (was: Re: [SQL] Another Date question)
Дата
Msg-id Pine.LNX.4.05.9912031343060.16046-100000@rns.roundnoon.com
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Ответ на Re: Datetime operators (was: Re: [SQL] Another Date question)  (<kaiq@realtyideas.com>)
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Remove the ::timespan and it will.

Andy

On Fri, 3 Dec 1999 kaiq@realtyideas.com wrote:

> why 
> 
> create table mymy (mydate datetime default (now() + '60 days'::timespan )); 
> 
> does not work?
> 
> On Fri, 3 Dec 1999, Thomas Lockhart wrote:
> 
> > > > I'd like to create a table with a datetime field that defaults to +60
> > > > days.
> > > > mydate datetime default 'now() +@60 days',
> > > > ...
> > > Where is a problem?
> > 
> > You have enclosed your default values into a large string, rather than
> > letting them be evaluated as an expression:
> > 
> >   mydate datetime default (now() + '60 days')
> > 
> > where the outer parens are optional.
> > 
> > >      datetime + '10 day' or
> > >      datetime + '2 year' ..etc.
> > > But I'm not sure what is better or exists it in other SQL.
> > 
> > afaik this is the simplest and most direct way to do it. Note that you
> > can include other timespan fields in the constant:
> > 
> >   mydate datetime default (now() + '60 days 10 hours')
> > 
> > HTH
> > 
> >                       - Thomas
> > 
> > -- 
> > Thomas Lockhart                lockhart@alumni.caltech.edu
> > South Pasadena, California
> > 
> > ************
> > 
> 



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