Re: Ordering 'A', 'B', ..., 'Z', 'AA', 'AB', ...

Поиск
Список
Период
Сортировка
Искать
От
Bruce Momjian
Тема
Re: Ordering 'A', 'B', ..., 'Z', 'AA', 'AB', ...
Дата
Msg-id
200202252009.g1PK9ZX07998@candle.pha.pa.us
Список
Дерево обсуждения
Re: Ordering 'A', 'B', ..., 'Z', 'AA', 'AB', ... Herbert Liechti <Herbert.Liechti@thinx.ch>
pgman wrote:
> > ORDER BY
> >     CASE WHEN TABLE.MYCOLUMN LIKE '__'
> >          THEN TABLE.MYCOLUMN 
> >          ELSE ' ' || TABLE.MYCOLUMN END
> > 
> > The syntax may be a little different in pg, though.
> > 
> > It's also easy enough to do in Perl with a custom sort sub.
> 
> In PostgreSQL, you would need to create a column with the CASE, the
> order by that using the column number or AS to name the column and order
> on that name.

Sorry, I was wrong.  You can use CASE in ORDER BY.  I made a mistake in
my quick testing.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026
В списке pgsql-general по дате отправления
От: Bruce Momjian
Дата:
Сообщение: Re: [SQL] Sort problem
От: Gavin M. Roy
Дата:
Сообщение: Re: Backup & Restore
FAQ