Re: First day of month, last day of month

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От Nacef LABIDI
Тема Re: First day of month, last day of month
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Msg-id f16f7ea00804240743la32b08cm6ced0d9ced56948a@mail.gmail.com
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Ответ на Re: First day of month, last day of month  (Colin Wetherbee <cww@denterprises.org>)
Ответы Re: First day of month, last day of month
Re: First day of month, last day of month
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Actually I want to select all rows whith dates between first day of the month 00:00:00 and last date of the month 23:59:59

On Thu, Apr 24, 2008 at 4:15 PM, Colin Wetherbee <cww@denterprises.org> wrote:
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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