Re: select count of distinct rows
| От | Havasvölgyi Ottó |
|---|---|
| Тема | Re: select count of distinct rows |
| Дата | |
| Msg-id | 005501c5fdef$30be34f0$0200a8c0@OTTO обсуждение исходный текст |
| Ответ на | unsubscribe ("Dinesh Pandey" <dpandey@secf.com>) |
| Ответы |
Re: select count of distinct rows
|
| Список | pgsql-sql |
Hi,
Yes, I need to compare all fields. Well, in this case it does not. Is this
impossible?
Thanks,
Otto
----- Original Message -----
From: "Jaime Casanova" <systemguards@gmail.com>
To: "Havasvölgyi Ottó" <h.otto@freemail.hu>
Cc: <pgsql-sql@postgresql.org>
Sent: Sunday, December 11, 2005 1:57 AM
Subject: Re: [SQL] select count of distinct rows
On 12/10/05, Havasvölgyi Ottó <h.otto@freemail.hu> wrote:
> Hi,
>
> I would like to select the count of distinct rows in a table.
>
> SELECT COUNT(DISTINCT *) FROM mytable;
>
are really all the fields distincts? the table doesn't have a pk?
> This does not work. How can I do it with Postgres?
>
> Thanks,
> Otto
>
--
regards,
Jaime Casanova
(DBA: DataBase Aniquilator ;)
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