Re: Comparing dates

From: David Lynn <davidl(at)ayamba(dot)com>
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: Comparing dates
Date: 2001-03-06 22:24:30
Message-ID: 3AA5639E.62B27772@ayamba.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-sql


Hello -

It seems that using BETWEEN would work well, especially for finding
dates between two other dates.

WHERE date_date BETWEEN '03-02-2001'::date and '03-03-2001'::date

--d

> On Tue, 6 Mar 2001, Markus Fischer wrote:
>
> > Hello,
> >
> > I've a SELECT statement on many joined Tabled and one of them has
> > a date column called 'date_date'. When I fetch a date e.g.
> > '02-03-2001', I get, say, 60 results back. When I now perform the
> > same query with another date, lets take '03-03-2001', I get back
> > about 70 results.
> >
> > When I now modify my query to get both results in one I write
> >
> > SELECT
> > ....
> > FROM
> > ..
> > AND
> > date_date >= '2001-03-02'
> > AND
> > date_date <= '2001-03-03'
> > AND
> > ....
> >
> > I think I should get back the rows for both days, 60 + 70 makes
> > 130 to me. But what I get back is even smaller then 60. I
> > allready tried TO_DATE conversion, an OR construct but always
> > the same result.
> >
> > Is there something special to know when comparing/working with
> > date-datetypes ?
> >
> >
> > kind regards,
> > Markus
> >
> > --
> > Markus Fischer, http://josefine.ben.tuwien.ac.at/~mfischer/
> > EMail: mfischer(at)josefine(dot)ben(dot)tuwien(dot)ac(dot)at
> > PGP Public Key: http://josefine.ben.tuwien.ac.at/~mfischer/C2272BD0.asc
> > PGP Fingerprint: D3B0 DD4F E12B F911 3CE1 C2B5 D674 B445 C227 2BD0
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 2: you can get off all lists at once with the unregister command
> > (send "unregister YourEmailAddressHere" to majordomo(at)postgresql(dot)org)
> >
>
> ---------------------------(end of broadcast)---------------------------
> TIP 2: you can get off all lists at once with the unregister command
> (send "unregister YourEmailAddressHere" to majordomo(at)postgresql(dot)org)

In response to

Browse pgsql-sql by date

  From Date Subject
Next Message Boulat Khakimov 2001-03-06 23:44:31 Undefined symbol
Previous Message clayton cottingham 2001-03-06 20:37:27 Re: [SQL] Date question