pg.ddx.io  pgsql-admin@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: Norbert Poellmann <np@ibu.de>
To: Holger Jakobs <holger@jakobs.com>
Cc: pgsql-admin@lists.postgresql.org
Subject: Re: PostgreSQL, change encoding preserving data
Date: Thu, 23 Feb 2023 14:52:44 +0100
Message-ID: <Y/dvrNYqWiFegZg8@mail.ibu.de> (raw)
In-Reply-To: <2af47a85-0004-fcb3-80c3-467e0468d07f@jakobs.com>
References: <RQJATA$1E1680D647802A67AD54279BC45B25E6@denisgottardello.it>
	<2af47a85-0004-fcb3-80c3-467e0468d07f@jakobs.com>

Hi,

I think, it should be possible without changing template0/template1, 
simply by using template0 and -E parameter to (command line) createdb.

Examples:

createdb -T template0 -E latin1 foo
createdb -T template0 -E sql_ascii foo2
createdb -T template0 -E EUC_CN foo3
createdb -T template0 -E utf8 foo4


np ->psql -l |grep foo
 foo        | np                  | LATIN1    | C       | C     | 
 foo2       | np                  | SQL_ASCII | C       | C     | 
 foo3       | np                  | EUC_CN    | C       | C     | 
 foo4       | np                  | UTF8      | C       | C     | 



cheers
Norbert 

--
Norbert Poellmann EDV-Beratung             email  : np@ibu.de
Severinstrasse 5                           telefon: 089 38469995  
81541 Muenchen, Germany                    telefon: 0179 2133436 


On Thu, Feb 23, 2023 at 02:18:54PM +0100, Holger Jakobs wrote:
> Am 23.02.23 um 14:00 schrieb info@denisgottardello.it:
> >
> > Hi, my database is setup with encoding= win1252. In order to go to 
> > utf8 I run the followed query:
> >
> > update pg_database set encoding= pg_char_to_encoding('utf8') where 
> > datname= 'Handyman'
> >
> > The problem is that, the database has already got data with special 
> > characters such as "àòèé". After having executed the query to change 
> > the encoding to utf8, I can't read the special caracters.
> > Is there a way to change the encoding and to migtrate the data?
> >
> > Best regards.
> >
> >
> > +39.347.4070897
> >
> > http://www.labcsp.com
> >
> > http://www.denisgottardello.it
> >
> > GMT+1
> >
> > Skype: mrdebug
> >
> This might help: 
> https://www.shubhamdipt.com/blog/how-to-change-postgresql-database-encoding-to-utf8/
> 
> Kind Regards,
> 
> Holger
> 
> 
> -- 
> Holger Jakobs, Bergisch Gladbach, Tel. +49-178-9759012
> 








view thread (4+ messages)  latest in thread

Message-ID: <Y/dvrNYqWiFegZg8@mail.ibu.de>
Permalink:  ../Y%2FdvrNYqWiFegZg8@mail.ibu.de/
Also on:    postgresql.org/message-id/Y/dvrNYqWiFegZg8@mail.ibu.de

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-admin@postgresql.org
  Cc: np@ibu.de, holger@jakobs.com, pgsql-admin@lists.postgresql.org
  Subject: Re: PostgreSQL, change encoding preserving data
  In-Reply-To: <Y/dvrNYqWiFegZg8@mail.ibu.de>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox