| From: | Rafael Martinez <r(dot)m(dot)guerrero(at)usit(dot)uio(dot)no> |
|---|---|
| To: | Miguel Angel Hernandez Moreno <miguel(dot)hdz(dot)mrn(at)gmail(dot)com> |
| Cc: | Lista PostgreSql <pgsql-es-ayuda(at)postgresql(dot)org> |
| Subject: | Re: convertir fecha a interval definido |
| Date: | 2011-02-10 22:41:18 |
| Message-ID: | 1297377678.2710.4.camel@core2 |
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| Lists: | pgsql-es-ayuda |
On Thu, 2011-02-10 at 15:59 -0600, Miguel Angel Hernandez Moreno wrote:
> saludos lista
>
> e tenido una pregunta, es posible hacer una resta de fecha pero
> definir en que queremos el interval
>
> select ('2011-02-10 15:56:39'::timestamp - '2011-02-02
> 15:56:39'::timestamp)::interval ('seconds')
>
> de que manera se podria hacer??
>
Usa EXTRACT(EPOCH FROM INTERVAL). Te quedaria asi:
select EXTRACT(EPOCH FROM('2011-02-10 15:56:39'::timestamp - '2011-02-02
15:56:39'::timestamp)::interval);
Mas informacion en:
http://www.postgresql.org/docs/current/interactive/functions-datetime.html
--
Rafael Martinez <r(dot)m(dot)guerrero(at)usit(dot)uio(dot)no>
University of Oslo
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