Character set Encoding

Hi,
Everybody i just want to know default character set encoding that is
use to store data in oracle 9i..
or is there any difference between Mssqi2005 character set encoding and oracle 9i character set encoding.
please reply................
regard's
paritosh tomar

DarkFiBrE72 wrote:
Its AL16UTF16,
From metalink
Starting in Oracle 9i the National Characterset (NLS_NCHAR_CHARACTERSET) will be
limited to UTF8 and AL16UTF16.
For more details refer to The National Character Set in Oracle 9i and 10g
Any other NLS_NCHAR_CHARACTERSET will no longer be supported.
When upgrading to 10g the value of NLS_NCHAR_CHARACTERSET is based
on value currently used in the Oracle8 version.
If the NLS_NCHAR_CHARACTERSET is UTF8 then new it will stay UTF8.
In all other cases the NLS_NCHAR_CHARACTERSET is changed to AL16UTF16
and -if used- N-type data (= data in columns using NCHAR, NVARCHAR2 orNCLOB )
may need to be converted.
Edited by: DarkFiBrE72 on Sep 24, 2008 7:12 PMI'm not sure if the OP was referring to the National character set? Is this implied by the corresponding SQL Server characterset mentioned?
Otherwise I would assume we are talking about the Database character set, which allows numerous different character sets and types (single-byte, multi-byte, Unicode etc. depending on Oracle release).
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

Similar Messages

How to add a new character set encoding?

Hello,
can anybody please explain to me, how to add a new character set encoding to Mac OS Tiger?
I have two Mac laptops, a new one with Snow Leopard and an older one with Tiger, and on the old one i cannot use or enable anywhere the "Russian (DOS)" character set encoding, which i need to be able to use some old text files.
On the Snow Leopard, this encoding is present in the list of available encodings of TextWrangler, but not in TIger.
If i have understood correctly, this is not a problem of TextWrangler, and the same encodings are available systemwide.
So, the question is: how to add new encodings to Tiger (or to Mac OS in general)?
Thanks.

I think possibly that's in the Get Info window of Finder?
I don't think either that or the input menu have any effect on available encoding choices. Adding languages to system prefs/international/languages can do that, but once you have added Russian there, I don't know of any way to add an additional Russian encoding (there are quite a number of them).

How to change the character set encoding not being a superset one

HI, i have a fresh installed database, but i realize the character set support in my client is not good enough, since its a not production database i want to change the character set encoding to anothor one not being a superset of the old one.
I have tried the "ALTER DATABASE CHARACTER SET WE8MSWIN1252" but it fails claiming i need a superset one.
I guess its just a single steps to do it, i have all the privileges, just not the time to reinstall and setup everything.

Do you know what that does to the existing data, though? My hunch would be that any characters which have a different binary representation in the source & target character sets would be corrupted.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

How do I specify character set encoding?

Hi,
I already defined sub-class META from DOCUMENT class thru xml.
Now I am trying to upload META files thru xml and its working fine.
But when I see properties from web, I don't see "Character Set" define.
As a result I can't use BufferedReader(doc.getContentReader())
Exception in thread "main" oracle.ifs.common.IfsException: IFS-32245: Cannot con
vert content to Reader - content does not have an associated character encoding.
at oracle.ifs.server.S_Media.convertInputStreamToReader(S_Media.java:1960)
at oracle.ifs.server.S_Media.getReaderFromObject(S_Media.java:1423)
at oracle.ifs.server.S_Media.getContentReader(S_Media.java:1408)
How can I specify encoding character set from xml?
Of if possible can I specify while defining class(META in this case).
Thanks,
-Niraj

Luis,
Each take encoding name arguments using the Java naming conventions.
If you want to do this automatically when you upload your XML file, you
will need to write a server-side representation of your "META" ClassObject
and provide an 'extendedPostInsert' implementation. In this method, you can
parse the XML content and pull out an encoding if you specify it within the
XML file. Could you explain in little more details?
If you can provide me links to any resouces, that would be great.
Thanks,
-Niraj

Lyrics character set encoding?

Hi,
For a few of my songs, I accidentily pasted in some French lyrics from Safari while I was using BIG5 character encoding. I've since corrected the lyrics but I think the iPod still tries to show the lyrics using BIG5 encoding. Everything looks ok in iTunes but accented marks don't show up correctly on my nano.
There's probably a painful way to fix this. Maybe there's an easy way?

DarkFiBrE72 wrote:
Its AL16UTF16,
From metalink
Starting in Oracle 9i the National Characterset (NLS_NCHAR_CHARACTERSET) will be
limited to UTF8 and AL16UTF16.
For more details refer to The National Character Set in Oracle 9i and 10g
Any other NLS_NCHAR_CHARACTERSET will no longer be supported.
When upgrading to 10g the value of NLS_NCHAR_CHARACTERSET is based
on value currently used in the Oracle8 version.
If the NLS_NCHAR_CHARACTERSET is UTF8 then new it will stay UTF8.
In all other cases the NLS_NCHAR_CHARACTERSET is changed to AL16UTF16
and -if used- N-type data (= data in columns using NCHAR, NVARCHAR2 orNCLOB )
may need to be converted.
Edited by: DarkFiBrE72 on Sep 24, 2008 7:12 PMI'm not sure if the OP was referring to the National character set? Is this implied by the corresponding SQL Server characterset mentioned?
Otherwise I would assume we are talking about the Database character set, which allows numerous different character sets and types (single-byte, multi-byte, Unicode etc. depending on Oracle release).
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

Region type URL and character set encoding

Hello,
I'd like to include static html page using URL region, but there is some translation done between encoding of input static html page and output of HTML DB. Does anyone know how the file encoding is translateded when the page is rendered?
I have tried some encodings of input file (CP1250, UTF-8, Unicode) but it did not work.

DarkFiBrE72 wrote:
Its AL16UTF16,
From metalink
Starting in Oracle 9i the National Characterset (NLS_NCHAR_CHARACTERSET) will be
limited to UTF8 and AL16UTF16.
For more details refer to The National Character Set in Oracle 9i and 10g
Any other NLS_NCHAR_CHARACTERSET will no longer be supported.
When upgrading to 10g the value of NLS_NCHAR_CHARACTERSET is based
on value currently used in the Oracle8 version.
If the NLS_NCHAR_CHARACTERSET is UTF8 then new it will stay UTF8.
In all other cases the NLS_NCHAR_CHARACTERSET is changed to AL16UTF16
and -if used- N-type data (= data in columns using NCHAR, NVARCHAR2 orNCLOB )
may need to be converted.
Edited by: DarkFiBrE72 on Sep 24, 2008 7:12 PMI'm not sure if the OP was referring to the National character set? Is this implied by the corresponding SQL Server characterset mentioned?
Otherwise I would assume we are talking about the Database character set, which allows numerous different character sets and types (single-byte, multi-byte, Unicode etc. depending on Oracle release).
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

Different character sets on database links

Does someone know, how to select data from different machines with different character sets via database link transferring the umlauts correctly ?
The destination instance uses we8iso8859p1, the source machines have us7ascii (SAP) or we8iso8859p1. It is NOT allowed to change the character sets on the source databases!

This is not so easy to solve. The correct procedure is to fix your non-ASCII database to reflect the correct character set encoding of your data. Have you checked with SAP to see whether it is really not possible/supported to change the application db character set ?
The only workaround that I can think of ,is to create another database with 'WE8ISO8859P1' as the db character set. Populate it with the data you need from your SAP database using either SQL*LOADER or from insert statements generated by SPOOLing out the data using SQL*PLUS

How to change character set to Unicode

Where can I get my current character set encoding value.
How do I change my encoding to Unicode.
What is the procedure.
Thnx in advance.
Ameya,

If you have not done so already, I suggest reading the Globalization Support guide. This document explains topics like Choosing a character set and Character Set Migration.
Also visit the Globalization Support, where these types of questions really belong.

File to DB Character set conversion

I really can't get my head around the character set encoding/decoding and when I need to convert explictly so I thought I would ask here.
I have a situation where a program needs to read in a file and store the information into an Oracle DB specific in UTF-8 decoding. The kicker is that the file to be read in could be in any number of character sets, e.g. ISO-8859-1, WINDOW-1252, etc.
I am using JDK 1.5, Oracle 11, and Oracle's thick driver. Oracle's encoding is to UTF-8.
Do I really need to do any encoding/decoding (via stream or string) to ensure that the data inserted into the DB will be in UTF-8?
Does the driver automatically convert in to the specific encoding?
Assume that I will be able to determine the charset of the file in question.
Thanks in advance.
- Doug

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[http://www.exampledepot.com/egs/java.io/pkg.html]
illustrate the ways to do this. Look at "e36. Reading a File into a Byte Array", and "e42. Reading ISO Latin-1 Encoded Data" and "e41. Writing UTF-8 Encoded Data"
Also refer to the API documentation for the InputStreamReader and OutputStreamWriter classes and methods. The constructors show the different ways to specify the encodings.
Once I have it it in Java...I am assuming the data is in Unicode. Do I need then need to convert the contents to UTF-8 as you suggested?Yes. Java characters are encoded in Unicode characters (mostly 2-byte) and they are not UTF-8 encoded..

Magnetic Swipe (Keyboard wedge) character set problems

Hi,
I'm writing an app that handles scanner and mag stripe input into a JTextField, the scanner works fine, the wedge has some character set/encoding problems
Windows XP, both USB, and both work fine in notepad etc. the wedge doesn't even present the same data on each scan (simple numeric codes with ; start and ? end chars)
eg. ;123456? reads fine in notepad but in my app, and a few other unrelated java apps i used for test purposes, i get strings like the following:-
W“|‡4*?
;“|3456?
;“|‡4¥—
SSÓ234*É
all the same card, which scans into this window correctly as ;123456?
it almost gets it right sometimes which makes me think java is chopping the bits into the wrong length to encode as characters, or something like that??
i tried subclassing the JTextField (snippet appended) and overriding the insertString function in the doc but it didn't work, i think because this is after the problem's occured.
Has anyone managed to get a wedge working in java? or have any ideas?
Thanks in advance,
Mark
protected Document createDefaultModel()
return new ASCIIDocument();
static class ASCIIDocument extends PlainDocument
public void insertString(int offs, String str, AttributeSet a) throws BadLocationException
if (str == null)
return;
try{
String str2=new String(str.getBytes(),"UTF-8"); // and various others, ascii, iso8859, etc
super.insertString(offs,str, a);
}catch (Exception e){}
...

To find out what is actually being sent, stop using a Swing application to do that. (You're right, you want to avoid the conversion of bytes to chars which is happening.)
Write a command line application which reads bytes from System.in and displays the values of those bytes. Don't convert them to chars in any way. Then run it and use the wedge to scan your data. You might have to press the Enter key to get System.in's buffer sent to your code.

Database Encoding and character set

Hi,
Is it possible to change [some easier straigtht forward way] the encodings and character set for a database [DB11 in this case]?
I have a database which has UTF16 and MSWIN1252 as the encoding and characterset, i want to change it to UTF8 for some testing and reasons.
Thanks,
Anupam

You should detail what you mean by encoding and character set.
A database has 2 character sets:
- the character set for CHAR, VARCHAR2 and CLOB
- the national character set for NCHAR, NVARCHAR2 and NCLOB.
You have 2 ways to change the database character set:
- with ALTER DATABASE statement
- with export/import
See http://download-uk.oracle.com/docs/cd/B10501_01/server.920/a96529/ch10.htm#1656

Value 'M' cannot be encoded in character set AR8MSWIN1256

Hello
i am using SQL Developer Version 4.0.0.13
when i tried to alter table using GUI i got the follwing error
Version 4.0.0.13
Value 'M' cannot be encoded in character set AR8MSWIN1256

You will need to give more detail on what you are doing, but that is an arabic character set and probably doesn't have an 'M'.
What are the character sets for the database you are using? (select * from nls_database_parameters where parameter in 'NLS_CHARACTER_SET','NLS_NCHAR_CHARACTERSET'))
What is the datatype of the column whose value you are tryig to set?
I suspect this ins't really a SQL Developer problem. Does it also happen in SQL*Plus?

CFFTP character encoding / character set

I have a strange problem with downloaded text file using
cfftp at my client site. When I test on my development site, the
downloaded text file is readable. But in the production server at
my client in austria, the downloaded text file is not readable at
all. When I open the file in notepad, it's like a binary file with
a lot of special chars.
I already set the transfermode manually to ascii but still
the same. I already look for character set option for cfftp but it
seems like it doesn't have it. Does anyone know a solution for my
problem?
Btw, my client server is a linux machine, and i think the
default language is germany.
Thanks before,
Tiono

I tried both binary and ASCII transfermode already but result
is the same. When my client download the file directly using FTP
client and open the file, he can read the content.
I'll mail to you the FTP login information since it's a
classified info.
Thanks and best regards,
Tiono

NLS CHARACTER SET 변경 방법 (ORACLE 7)

제품 : ORACLE SERVER
작성날짜 : 2004-11-09
NLS CHARACTER SET 변경 방법 (ORACLE 7)
======================================
PURPOSE
이 자료는 Oracle RDBMS SERVER에서 NLS CHARACTER SET 변경 방법에 대한
내용을 소개한다.
[ ORACLE 7 에서만 가능 ]
데이타베이스의 CHARACTER SET은 데이타 딕셔너리 테이블인 sys.props$에
들어 있다.
SQL>desc sys.props$
Name Null? Type
NAME NOT NULL VARCHAR2(30)
VALUE$ VARCHAR2(2000)
COMMENT$ VARCHAR2(2000)
SQL>column c1 format a30
SQL>select name c1, value$ c1 from sys.props$;
C1 C1
DICT.BASE 2
NLS_LANGUAGE AMERICAN
NLS_TERRITORY AMERICA
NLS_CURRENCY $
NLS_ISO_CURRENCY AMERICA
NLS_NUMERIC_CHARACTERS .,
NLS_DATE_FORMAT DD-MON-YY
NLS_DATE_LANGUAGE AMERICAN
NLS_CHARACTERSET US7ASCII
NLS_SORT BINARY
GLOBAL_DB_NAME NLSV7.WORLD
여기서 NLS_CHARACTERSET에 현재 DB의 CHARACTER SET이 들어 있는데
이 값을 변경하여 DB의 CHARACTER SET을 변경할 수 있다.
여기서는 US7ASCII에서 KO16KSC5601로 옮기는 경우를 알아보자.
우선 바꾸고자 하는 CHRACTER SET이 지원되는 지를 다음 명령으로
확인한다.
select convert('a','KO16KSC5601','US7ASCII') from dual;
만약 이 Select 문에서 ORA-01482 에러가 발생하면 지정한 CHARACTER
SET이 지원되지 않는 경우이며 에러가 발생하지 않으면 CHARACTER
SET을 변경할 수 있다.
작업을 하기 전에는 만약을 위해서 DB 전체를 백업 받아두도록 한다.
CHARACTER SET 을 잘못 변경하면 DB 를 OPEN 할 수가 없기 때문이다.
1. 다음의 Update문을 실행하여 CHARACTER SET을 변경한다.
UPDATE sys.props$
SET value$ = 'KO16KSC5601'
WHERE name = 'NLS_CHARACTERSET';
Update 시에 NLS_CHARACTERSET을 지원되지 않는 값으로 잘못 설정하거나
실수로 콘트롤 문자 같은 것이 들어가게 되면 DB가 Shutdown 된 다음에는
Startup 이 안되므로 Update 후에 다음 명령으로 확인을 한 다음에
Commit을 하도록 한다.
select name, value$
from sys.props$
where value$ = 'KO16KSC5601';
Select가 제대로 출력되면 Commit 하고 Shutdown 했다가 Startup 하게
되면 새로운 CHARACTER SET 값을 갖게 된다. SELECT가 안 되면 ROLLBACK
하고 UPDATE부터 다시 하도록 한다.
2. 환경 변수 NLS_LANG 을 변경한다.
.profile 에서
NLS_LANG=American_America.KO16KSC5601; export NLS_LANG
또는 .cshrc 에서.
setenv NLS_LANG American_America.KO16KSC5601
*** win95 및 winnt의 client에서는 registry editor에서 NLS_LANG 값을
맞추어준다.
주의 !!!
: 위의 작업을 하기 전에 발생할 가능성이 있는 문제점
1) update 중 KO16KSC5601 이나 US7ASCII 등에서 철자를 잘못 입력하시면,
db 재기동 후에, 다음과 같은 에러가 발생합니다.
ora-12708
12708, 00000, "error while loading create database NLS parameter %s"
2) KO16KSC5601과 US7ASCII의 비교
Character set : KO16KSC5601 인 경우
===================================
: double byte encoding schema 이므로, 한글의 경우 2 bytes 를 크기 1로
계산하는 함수들이 있습니다.
그리고, table , column name에 한글을 double quote 없이 사용할 수 있습니다.
예)
SQL> create table 시험1
2 (컬럼1 varchar(10));
가
a
홍길동
SQL> select length(컬럼1) from 시험1;
1
1
3
SQL> select lengthb(컬럼1) from 시험1;
2
1
6
Character set : US7ASCII 인 경우
=================================
: single byte 7 bit encoding 을 사용합니다.
한글로 된 table, column 이름 사용 시 double quote를 반드시 사용해야 한다.
예)
SQL> create table "사원"
2 ("사원이름" varchar2(10));
가
a
홍길동
SQL> select length("사원이름") from "사원";
2
1
6
SQL> select lengthb("사원이름") from "사원";
2
1
6
US7ASCII일 때에는 vsize, lengthb function의 결과가 length 함수와 모두
동일합니다.
cf) substr, substrb 함수도 위의 length, lengthb의 관계와 같음.

제품 : ORACLE SERVER
작성날짜 : 2004-11-09
NLS CHARACTER SET 변경 방법 (ORACLE 7)
======================================
PURPOSE
이 자료는 Oracle RDBMS SERVER에서 NLS CHARACTER SET 변경 방법에 대한
내용을 소개한다.
[ ORACLE 7 에서만 가능 ]
데이타베이스의 CHARACTER SET은 데이타 딕셔너리 테이블인 sys.props$에
들어 있다.
SQL>desc sys.props$
Name Null? Type
NAME NOT NULL VARCHAR2(30)
VALUE$ VARCHAR2(2000)
COMMENT$ VARCHAR2(2000)
SQL>column c1 format a30
SQL>select name c1, value$ c1 from sys.props$;
C1 C1
DICT.BASE 2
NLS_LANGUAGE AMERICAN
NLS_TERRITORY AMERICA
NLS_CURRENCY $
NLS_ISO_CURRENCY AMERICA
NLS_NUMERIC_CHARACTERS .,
NLS_DATE_FORMAT DD-MON-YY
NLS_DATE_LANGUAGE AMERICAN
NLS_CHARACTERSET US7ASCII
NLS_SORT BINARY
GLOBAL_DB_NAME NLSV7.WORLD
여기서 NLS_CHARACTERSET에 현재 DB의 CHARACTER SET이 들어 있는데
이 값을 변경하여 DB의 CHARACTER SET을 변경할 수 있다.
여기서는 US7ASCII에서 KO16KSC5601로 옮기는 경우를 알아보자.
우선 바꾸고자 하는 CHRACTER SET이 지원되는 지를 다음 명령으로
확인한다.
select convert('a','KO16KSC5601','US7ASCII') from dual;
만약 이 Select 문에서 ORA-01482 에러가 발생하면 지정한 CHARACTER
SET이 지원되지 않는 경우이며 에러가 발생하지 않으면 CHARACTER
SET을 변경할 수 있다.
작업을 하기 전에는 만약을 위해서 DB 전체를 백업 받아두도록 한다.
CHARACTER SET 을 잘못 변경하면 DB 를 OPEN 할 수가 없기 때문이다.
1. 다음의 Update문을 실행하여 CHARACTER SET을 변경한다.
UPDATE sys.props$
SET value$ = 'KO16KSC5601'
WHERE name = 'NLS_CHARACTERSET';
Update 시에 NLS_CHARACTERSET을 지원되지 않는 값으로 잘못 설정하거나
실수로 콘트롤 문자 같은 것이 들어가게 되면 DB가 Shutdown 된 다음에는
Startup 이 안되므로 Update 후에 다음 명령으로 확인을 한 다음에
Commit을 하도록 한다.
select name, value$
from sys.props$
where value$ = 'KO16KSC5601';
Select가 제대로 출력되면 Commit 하고 Shutdown 했다가 Startup 하게
되면 새로운 CHARACTER SET 값을 갖게 된다. SELECT가 안 되면 ROLLBACK
하고 UPDATE부터 다시 하도록 한다.
2. 환경 변수 NLS_LANG 을 변경한다.
.profile 에서
NLS_LANG=American_America.KO16KSC5601; export NLS_LANG
또는 .cshrc 에서.
setenv NLS_LANG American_America.KO16KSC5601
*** win95 및 winnt의 client에서는 registry editor에서 NLS_LANG 값을
맞추어준다.
주의 !!!
: 위의 작업을 하기 전에 발생할 가능성이 있는 문제점
1) update 중 KO16KSC5601 이나 US7ASCII 등에서 철자를 잘못 입력하시면,
db 재기동 후에, 다음과 같은 에러가 발생합니다.
ora-12708
12708, 00000, "error while loading create database NLS parameter %s"
2) KO16KSC5601과 US7ASCII의 비교
Character set : KO16KSC5601 인 경우
===================================
: double byte encoding schema 이므로, 한글의 경우 2 bytes 를 크기 1로
계산하는 함수들이 있습니다.
그리고, table , column name에 한글을 double quote 없이 사용할 수 있습니다.
예)
SQL> create table 시험1
2 (컬럼1 varchar(10));
가
a
홍길동
SQL> select length(컬럼1) from 시험1;
1
1
3
SQL> select lengthb(컬럼1) from 시험1;
2
1
6
Character set : US7ASCII 인 경우
=================================
: single byte 7 bit encoding 을 사용합니다.
한글로 된 table, column 이름 사용 시 double quote를 반드시 사용해야 한다.
예)
SQL> create table "사원"
2 ("사원이름" varchar2(10));
가
a
홍길동
SQL> select length("사원이름") from "사원";
2
1
6
SQL> select lengthb("사원이름") from "사원";
2
1
6
US7ASCII일 때에는 vsize, lengthb function의 결과가 length 함수와 모두
동일합니다.
cf) substr, substrb 함수도 위의 length, lengthb의 관계와 같음.

Oracle 10g db character set issue

I have a database 10g with database character set western
european "WE8ISO8859P1" and we are receiving data from source
database with database character set as "UTF8" during data load
for one of the tables we receive the following error "ORA-29275:
partial multibyte character" I understand this might be due to
the fact western european character set is not a subset/superset
of UTF8 .Am i right ? What would be the way around this ?

It is certainly possible that the issue is that your database characterset is a subset of UTF8.
How are you getting the data? Are we talking about a flat file? A query over a database link? Something else?
Does the data you're getting contain characters that cannot be represented in the ISO-8859 1 character set? It is quite common to send UTF-8 encoded files even when the underlying data is representable in other 8-bit character sets (like ISO-8859 1).
What are you trying to do with the data? Are you trying to load it into a CHAR/ VARCHAR2 column? A CLOB? A BLOB? An NCHAR/ NVARCHAR2? Something else?
Justin

Character set Encoding

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