Re: Convert number of month to name of month

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От Karel Zak
Тема Re: Convert number of month to name of month
Дата
Msg-id 20020805131737.B23020@zf.jcu.cz
обсуждение исходный текст
Ответ на Re: Convert number of month to name of month  (Oliver Elphick <olly@lfix.co.uk>)
Список pgsql-general
On Fri, Aug 02, 2002 at 06:59:43PM +0100, Oliver Elphick wrote:
> On Tue, 2002-07-30 at 07:02, Matthew Lock wrote:
> > How do I build a query that takes a field containing the number of the
> > month (1, 2, ..12) and displays it as the name of the month (Jan, Feb,
> > ..Dec)?
> >
> > For example:
> > 1 as Jan
> > 2 as Feb
> > etc.
>
> In plain SQL, use CASE:
>
>   SELECT CASE
>            WHEN monthno = 1 THEN 'January'
>            WHEN monthno = 2 THEN 'February'
>            ...
>          END AS month
>     FROM ...
>
> You could also write a function in PL/PGSQL...

 Too long :-)

test=# SELECT to_char(('2000-'|| 8 || '-01')::date , 'Month');
  to_char
-----------
 August

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

 C, PostgreSQL, PHP, WWW, http://docs.linux.cz, http://mape.jcu.cz

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