Re: count different values in column

Поиск
Список
Период
Сортировка
От Gautham S. Rao
Тема Re: count different values in column
Дата
Msg-id 00db01c1e789$1a5294c0$41057aa3@tatainfotech.com
обсуждение исходный текст
Ответ на count different values in column  ("Albrecht Berger" <berger1517@gmx.ch>)
Список pgsql-sql
Hi Berger,

Try,
select a from  Resulttable group by a having count(a) = (select max(cnt)
from (select count(a) as cnt from  Resulttable group by a) as tmp);

Regards,
Gautham.

----- Original Message -----
From: "Albrecht Berger" <berger1517@gmx.ch>
To: "pgsql" <pgsql-sql@postgresql.org>
Sent: Friday, April 19, 2002 3:00 PM
Subject: [SQL] count different values in column


> Hello,
> today I have a new question :)
>
> I've a resulttable is generated by a couple of subselects and joins which
> contains only one column.
>
> Now I want to count the different values in the column.
>
> Resulttable :
>    a
> ------
> 10
> 12
> 12
> 12
> 14
> 14
> 15
>
> I need the value which is repeated most in the resulttable (in this
example
> 12 ) !
>
>
> Any suggestions ?
>
>
> Thx
> berger
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>



В списке pgsql-sql по дате отправления:

Предыдущее
От: Tod McQuillin
Дата:
Сообщение: Re: count different values in column
Следующее
От: Christoph Haller
Дата:
Сообщение: Re: count different values in column