Thread: datetime arithmatic

Folks,

    I am new to postgresql 7.1 and like what I see so far.  How is datetime
arithmatic performed in postgres.  I have a table with start date/time
and end date/time(datetime data type) fields and want to set the default
end time to 1 hour later than the start time.  Is there a way to do
this.  My attempts to set the default value for the field using:

starttime datetime default now(),
endtime datetime default now() + xxx.xxx,

has yielded only either a datetime with time set to 00:00 or  only a
date!

Thanks for the help.

Stuart

Maybe this helps you:

starttime datetime default now(),
endtime datetime default (now() + interval('1 hour'))

----- Original Message -----
From: "Stuart" <sfbarbee@yahoo.com>
To: <pgsql-general@postgresql.org>
Sent: 2001. április 30. 21:18
Subject: [GENERAL] datetime arithmatic


> Folks,
>
> I am new to postgresql 7.1 and like what I see so far.  How is datetime
> arithmatic performed in postgres.  I have a table with start date/time
> and end date/time(datetime data type) fields and want to set the default
> end time to 1 hour later than the start time.  Is there a way to do
> this.  My attempts to set the default value for the field using:
>
> starttime datetime default now(),
> endtime datetime default now() + xxx.xxx,
> 
> has yielded only either a datetime with time set to 00:00 or  only a
> date!
>
> Thanks for the help.
>
> Stuart
>
> ---------------------------(end of broadcast)---------------------------
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