From: patrick.jacquot@anpe.fr
To: pgsql-sql@postgresql.org
Subject: Re: Comparing dates
Date: Tue, 06 Mar 2001 17:38:41 +0100
Message-ID: <3AA51291.BA386B47@anpe.fr> (raw)
References: <20010306133323.A3880@josefine.ben.tuwien.ac.at>
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@josefine.ben.tuwien.ac.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@postgresql.org)
ANDing restrictions makes them narrower.
If you want to broaden your selection, try ORing the conditions
HTH
Patrick
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: patrick.jacquot@anpe.fr
Subject: Re: Comparing dates
In-Reply-To: <3AA51291.BA386B47@anpe.fr>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox