Re: backup

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От Gurjeet Singh
Тема Re: backup
Дата
Msg-id 65937bea0906092250g56700350pc869bc43ddffc2bf@mail.gmail.com
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Ответ на Re: backup  ("Jyoti Seth" <jyotiseth2001@gmail.com>)
Список pgsql-sql
It should be \copy . This is a psql command; if you have direct access to database host machine, you might want to use the SQL command COPY for it's performance.

http://www.postgresql.org/docs/8.3/interactive/app-psql.html
http://www.postgresql.org/docs/8.3/interactive/sql-copy.html

Best regards,

On Wed, Jun 10, 2009 at 10:38 AM, Jyoti Seth <jyotiseth2001@gmail.com> wrote:
I tried using /copy command. It is not giving any error but also not
creating any file.

Thanks
Jyoti

-----Original Message-----
From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org]
On Behalf Of Jasen Betts
Sent: Tuesday, June 09, 2009 6:03 PM
To: pgsql-sql@postgresql.org
Subject: Re: [SQL] backup

On 2009-06-09, Jyoti Seth <jyotiseth2001@gmail.com> wrote:
> This is a multipart message in MIME format.
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> Hi all,
>
>
>
> Can we take backup of specific data of a table (using where clause)?

in psql:

/copy (select * from table WHERE condition ) to 'FILENAME'

requires postgres version >= 8.2 IIRC.

you can use any query.

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