Re: newbie question for return date

Поиск
Список
Период
Сортировка
От Richard Huxton
Тема Re: newbie question for return date
Дата
Msg-id 200210301845.30758.dev@archonet.com
обсуждение исходный текст
Ответ на newbie question for return date  ("tviardot" <tviardot@sympatico.ca>)
Список pgsql-general
On Monday 28 Oct 2002 7:57 pm, tviardot wrote:
> Hi guys, here a newbies question.
> I've made a table with some action and date.
> How may i query the most recent date. (I'd like to return only the record
> which have the most recent date ).

SELECT * from table_name ORDER BY date_column DESC LIMIT 1;

If you have an index on date_column this will be almost instant. If two rows
have the same (largest) value in date_column which gets returned isn't well
defined.

--
  Richard Huxton

В списке pgsql-general по дате отправления:

Предыдущее
От: Tom Lane
Дата:
Сообщение: Re: how to terminate a process when kill fails
Следующее
От: Tom Lane
Дата:
Сообщение: Re: Replacing a table