From: | "Kumar" <sgnerd(at)yahoo(dot)com(dot)sg> |
---|---|
To: | "sad" <sad(at)bankir(dot)ru>, <pgsql-sql(at)postgresql(dot)org> |
Subject: | Re: Getting the week of a date |
Date: | 2004-02-17 05:10:19 |
Message-ID: | 00a401c3f514$58244970$7502a8c0@hdsc.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
Seems a part of your function always returns '0'
select 1 - (to_char(date_trunc('month',now()),'D'))::INT2
because while we use date_trunc it will always return the first day of the
month and when it get subtracted by '1' it be always zero. Is there any
reason why you have included that?
Thanks
Kumar
----- Original Message -----
From: "sad" <sad(at)bankir(dot)ru>
To: <pgsql-sql(at)postgresql(dot)org>
Sent: Monday, February 16, 2004 6:53 PM
Subject: Re: [SQL] Getting the week of a date
EXCUSE ME, GUYS !
i forgot to add one monome:
7*(((to_char(date_trunc('month',now()),'D'))::INT2-1)/4)
which is stands for skip a first week of month in case it is not consist Wed
finally the select will be similar the following
SELECT 7*(((to_char(date_trunc('month',now()),'D'))::INT2-1)/4) + 1 -
(to_char(date_trunc('month',now()),'D'))::INT2 + 7*3-3 ;
4 - is a number of Wed in a week (in postgresql numeration)
---------------------------(end of broadcast)---------------------------
TIP 3: if posting/reading through Usenet, please send an appropriate
subscribe-nomail command to majordomo(at)postgresql(dot)org so that your
message can get through to the mailing list cleanly
From | Date | Subject | |
---|---|---|---|
Next Message | Kumar | 2004-02-17 05:46:53 | Re: Getting the week of a date |
Previous Message | Greg Patnude | 2004-02-16 17:51:46 | Re: nextval problem |