From: Colin Wetherbee <cww@denterprises.org>
To: Frank Bax <fbax@sympatico.ca>
Cc: pgsql-sql@postgresql.org
Subject: Re: First day of month, last day of month
Date: Thu, 24 Apr 2008 10:15:23 -0400
Message-ID: <481095FB.7090600@denterprises.org> (raw)
In-Reply-To: <48108813.6070401@sympatico.ca>
References: <f16f7ea00804240559y6694c19fx102e57ea4455b07d@mail.gmail.com>
<481085D1.2010807@sympatico.ca>
<48108813.6070401@sympatico.ca>
Frank Bax wrote:
> Frank Bax wrote:
>> Nacef LABIDI wrote:
>>> is there a better method to retrieve all the rows with dates in the
>>> current month.
>>
>> select * from mytable where extract(month from mydate) = extract(month
>> from now()) and extract(year from mydate) = extract(year from now());
>
> Sorry; I was not thinking clearly - date_trunc is better for this:
>
> select * from mytable where date_trunc('month',mydate) =
> date_trunc('month',now());
I have some code that uses extract() for this sort of thing. Would you
mind explaining how date_trunc() is better for this?
Most of my extract() results end up in <select> drop-down boxes in HTML.
Thanks.
Colin
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To: pgsql-sql@postgresql.org
Cc: cww@denterprises.org, fbax@sympatico.ca
Subject: Re: First day of month, last day of month
In-Reply-To: <481095FB.7090600@denterprises.org>
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