Обсуждение: Problem with selecting the first day of the the week

Hi,

   I need a function to select the first day of the week. For example giving  today´s date(29/10/2008).

Can anyone help´s me?
Thanks!

Hello

try

CREATE OR REPLACE FUNCTION public.fdow(date)
 RETURNS date
 LANGUAGE sql
 IMMUTABLE STRICT
AS $function$ select $1 - extract(dow from $1)::int $function$

postgres=# select fdow(current_date);
    fdow
------------
 2008-10-26
(1 row)

regards
Pavel Stehule

2008/10/29 x asasaxax <xanaruto@gmail.com>:
> Hi,
>
>    I need a function to select the first day of the week. For example
> giving  today´s date(29/10/2008).
>
> Can anyone help´s me?
> Thanks!
>

On 29/10/2008 20:11, x asasaxax wrote:

>    I need a function to select the first day of the week. For example
> giving  today´s date(29/10/2008).

select 'Monday';

;-)


Ray.


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Raymond O'Donnell, Director of Music, Galway Cathedral, Ireland
rod@iol.ie
Galway Cathedral Recitals: http://www.galwaycathedral.org/recitals
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