I use
pg_dump.exe -U postgres -f "file-name.sql" database-name
to backup UTF-8 encoded databases on PostgreSQL 8.4 and 9.5, Windows host. Some may have foreign characters such as Chinese, Thai etc stored in Characters columns.
The resulting .sql file shows ANSI encoding when opening in Notepad++ (I'm NOT applying ANSI to opened files by default). How do I know if Unicode characters are always preserved in the dump file? Should I be using an archive (object) backup file instead?
Quote from the manual
By default, the dump is created in the database encoding.
There is no difference in a text file in ANSI encoding and UTF-8 if no extended characters are used. Maybe your dump has no special characters and thus the editor doesn't identify it as UTF-8.
If you want the SQL dump in a specific encoding, use the --encoding=encoding parameter or the PGCLIENTENCODING environment variable
Related
I have a database setup with a UTF-8 encoding. Trying to copy a table to csv, where the filename has a special character writes out the filename wrong to disk.
On a Windows 10 localhost PostgreSQL installation:
copy
(select 'tønder')
to 'C:\temp\Sønderborg.csv' (FORMAT CSV, HEADER TRUE, DELIMITER ';', ENCODING 'UTF8');
Names the csv file: Sønderborg.csv and not Sønderborg.csv.
Both
SHOW CLIENT ENCODING;
SHOW SERVER_ENCODING;
returns UTF8
How can one control the csv filename encoding? The encoding inside the csv is ok writing Tønder!
UPDATE
I have run the copy command from pgAdmin, DataGrip and a psql console. DataGrip uses JDBC and will only handle UTF8. All three applications writes the csv filename in wrong encoding. The only difference is that the psql console says the client encoding is WIN1252.
I don't think it's possible to change this behaviour. It looks like Postgres assumes that the filename encoding matches the server_encoding (as suggested on the mailing lists here and here). The only workaround I could find was to run the command while connected to a WIN1252-encoded database, which is probably not very helpful.
If you're trying to run this on the same machine as the server itself, then instead of using the server-side COPY, you can run psql's client-side \copy, which will respect your client_encoding when interpreting the file path:
psql -c "\copy (select 'tønder') to 'C:\temp\Sønderborg.csv' (FORMAT CSV, HEADER TRUE, DELIMITER ';', ENCODING 'UTF8')"
Note that cmd.exe (and even powershell.exe) still uses legacy DOS encodings by default, so you might need to run chcp 1252 to set the console codepage before launching psql.
I am reading a csv file in my sql script and copying its data into a postgre sql table. The line of code is below :
\copy participants_2013 from 'C:/Users/Acrotrend/Desktop/mip_sahil/mip/reelportdata/Participating_Individual_Extract_Report_MIPJunior_2013_160414135957.Csv' with CSV delimiter ',' quote '"' HEADER;
I am getting following error : character with byte sequence 0x9d in encoding 'WIN1252' has no equivalent in encoding 'UTF8'.
Can anyone help me with what the cause of this issue and how can I resolve it?
The problem is that 0x9D is not a valid byte value in WIN1252.
There's a table here: https://en.wikipedia.org/wiki/Windows-1252
The problem may be that you are importing a UTF-8 file and postgresql is defaulting to Windows-1252 (which I believe is the default on many windows systems).
You need to change the character set on your windows command line before running the script with chcp. Or in postgresql you can:
SET CLIENT_ENCODING TO 'utf8';
Before importing the file.
Simply specify encoding 'UTF-8' as the encoding in the \copy command, e.g. (I broke it into two lines for readability but keep it all on the same line):
\copy dest_table from 'C:/src-data.csv'
(format csv, header true, delimiter ',', encoding 'UTF8');
More details:
The problem is that the Client Encoding is set to WIN1252, most likely because it is running on Windows machine but the file has a UTF-8 character in it.
You can check the Client Encoding with
SHOW client_encoding;
client_encoding
-----------------
WIN1252
Any encoding has numeric ranges of valid code. Are you sure so your data are in win1252 encoding?
Postgres is very strict and doesn't import any possible encoding broken files. You can use iconv that can works in tolerant mode, and it can remove broken chars. After cleaning by iconv you can import the file.
I had this problem today and it was because inside of a TEXT column I had fancy quotes that had been copy/pasted from an external source.
I use PostgreSQL copy command to make a csv file.
COPY (select * from table) from '/tmp/123456.csv' with csv header encoding 'UTF8';
this command is ok
But I want to make file with ANSI encoding, because I want to open it in Microsoft Excel
COPY (select * from table) from '/tmp/123456.csv' with csv header encoding 'ANSI';
this command can't make csv file
Since you seem to be on Windows, maybe you want to use one of the Windows encodings, for example WIN1252 for western European languages.
I am redirecting the stderr of pg_dump to file:
pg_dump ...... 2>pg_dump.log
but this file is ANSI-encoded. I would like to see it in UTF-8 or Unicode. Is this possible?
man pg_dump
-E encoding
--encoding=encoding
Create the dump in the specified character set encoding. By default, the dump is created in the database encoding.
BTW: regarding "UTF-8 or Unicode", the "or" does not make sense; UTF-8 is one of the encodings of Unicode (other is UTF-16)
Updated: Sorry, I misunderstood your problem. Are you interested in text error messages generated by Postresql or texts from some queries/data from your own data? If the former, I think the LC_MESSAGES setting should work http://www.postgresql.org/docs/9.2/interactive/locale.html
Elsewhere, you can always use iconv
i Convert my database from this tutorial
http://en.gentoo-wiki.com/wiki/Convert_latin1_to_UTF-8_in_MySQL
but i didn't notice the arabic characters INSIDE the database is encrypted , like
اوÙاµ ®ØµØ… „Ù‡ Øكلق§Ø‡Ø°Ù…ا؄مشٳÙÙ‹ ÙÙ„...
through the php script connect with the database everything GOOD , but inside the database the arabic characters looks like that
i try to return the database to the old encoding which is WINDOWS-1256 using iconv by the following command
# iconv -f UTF-8 -t WINDOWS-1252 database.sql > database_1252.sql
i got this error
iconv: illegal input sequence at position
so i try to run the command again using -c option
# iconv -c -f UTF-8 -t WINDOWS-1252 database.sql > database_1252.sql
it's worked and i can see the arabic characters inside the database as well, but alot of characters missing , for example :
i would like to go shopping
after the converting
i would like to
i want to know how could i fix the Arabic Characters to be read as normal inside the database complete not missing anything
thanks
Wait wait .... you say your database was in WINDOWS-1256 (or WINDOWS-1252?) and you converted it based on tutorial latin1 -> utf8? No wonder the characters are malformed.
I wouldn't trust to the tutorial solution at all. I would recommend that you return to your former version of the database and use mysql alter table command to change the encoding.