Re: Order By Date Question

On Tue, Sep 08, 2009 at 06:29:28AM -0700, BlackMage wrote:
>
> I have a question about ordering by date. I have a table with two fields and
> some date
>
> Name(character varying)  |  Event_Date(timestamp with timezone)
> A                                  |    2009-09-10 5:30:00
> B                                  |    2009-09-10- 00:00:00
> C                                  |    2009-09-11 17:30:00
> D                                  |  2009-09-11  07:30:00
>
>
> I want to order by date and then by name, so I want the result A,B,C,D. The
> problem is when I do a 'SELECT * FROM table_name ORDER BY Event_Date, DESC',
> it includes the actual time (HH:MM:SS) so the order comes out B,A,D,C.
>
> So what I am asking is how do I order only by the date? YYYY-MM-DD?

Because you're using timestamp with time zone, you need to tread
carefully, as casting is full of scare.  One way to tread carefully is
to

ORDER BY date_trunc('day', "Event_Date"), "Name"

Cheers,
David.
--
David Fetter <david@fetter.org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david.fetter@gmail.com

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