Re: Converting/formatting timestamp arithmetic - Mailing list pgsql-general

From Karel Zak
Subject Re: Converting/formatting timestamp arithmetic
Date
Msg-id 20020314093221.A11295@zf.jcu.cz
Whole thread Raw
In response to Converting/formatting timestamp arithmetic  (eel@javabox.com (Eel))
List pgsql-general
On Thu, Mar 07, 2002 at 05:42:00PM -0800, Eel wrote:
> Hi,
>   Is there any easy way to convert the result of timestamp
> arithmetic to a simple decimal number?
>
> I have something like:
>
> select current_timestamp - timein as daysat from transcations
>
> daysat looks like:
>
> 3 days 12:00:00
>
> I want it to look like:
>
> 3.5

test=# select date_part('d', '3 days 12:00:00'::interval) + (1 / (24 /
       date_part('h', '3 days 12:00:00'::interval)));
 ?column?
 ----------
       3.5

test=# select date_part('d', '3 days 6:00:00'::interval) + (1 / (24 /
date_part('h', '3 days 6:00:00'::interval)));
 ?column?
 ----------
      3.25


> I fooled around a bit to_number(text, text).  It seems like

 IMHO better is extract relavant values and count it.

        Karel

--
 Karel Zak  <zakkr@zf.jcu.cz>
 http://home.zf.jcu.cz/~zakkr/

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