Re: Extract week from date

De: Filip Rembiałkowski [mailto:plk.zuber@gmail.com]
Enviado el: lunes, 18 de mayo de 2009 16:54
Para: Dani Castaños
CC: pgsql-sql@postgresql.org
Asunto: [?? Probable Spam] Re: [SQL] Extract week from date

2009/5/18 Dani Castaños <dcastanos@androme.es>

Hi again,

I need to extract date grouped by week from an statistics table.

I was trying something like this:

SELECT total_duration, EXTRACT( week from date statistics_date )
FROM statistics_daily
GROUP BY EXTRACT( week from date statistics_date ), total_duration;

But it doesn't works... Neither:

SELECT total_duration, statistics_date
FROM statistics_daily
GROUP BY EXTRACT( day from statistics_date ), total_duration,
statistics_date;