Regarding non-ASCII characters columns in a database

Hi All,
from any user view are we able to find out that any column which uses non-ASC II charachters .
list of column names which uses non-ASCII character in a particular database.
Thanks in Advance.
Regards
Fento

What do you mean by non-ASCII characters?
The ASCII character set contains characters for all byte values, however not all of them are displayable characters. Is it non-displayable characters you want?

Similar Messages

Replacing non-ASCII characters with HTML charcter references

Hi All,
In Oracle 10g or greater is there a built-in function that will convert a string with non-ASCII characters like this
a b č 뮼
into an ASCII string with HTML character references like this?
a b & # x 0 1 0 D ; & # x B B B C ;
(note I had to include spaces between each character in the sample code for message to prevent the forum software from converting my text)
I tried using
utl_i18n.escape_reference( val, 'us7ascii' )
but for some reason it returns
a b c & # x B B B C ;
Note how it converted the Western European character "č" to its unaccented counterpart "c", not "& # x 0 1 0 D ;" (is this a bug?).
I also tried a custom solution using regexp_replace and asciistr (which I can't include here because the forum software chokes on it) but it only returns the correct result for values <=4000 characters long. Unfortunately asciistr doesn't appear to accept CLOB values larger than 4000 characters. It returns an error message like
(ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion (actual: 30251, maximum: 4000) ).
I'm looking for a solution that works on CLOB data of any size.
Thanks in advance for any insight you can provide.
Joe Fuda

So with that (UTF8) in mind, let's take another look.....
As shown below, I used a AL32UTF8 database.
Note: I did not use a unicode capable tool for querying. So I set console mode code page to 1250 just to have č displayed properly (instead of posing as an è).
Also, as a result of using windows-1250 for client character set, in the val column and in the second select's ncr column (iso8859-1), è (00e8) has been replaced with e through character set conversion going from server back to client.
Running the same code on a database with a db character set such as we8mswin1252, that doesn't define the č (latin small c with caron) character, would yield results with a c in the ncr column.
C:\>chcp 1250
Aktuell teckentabell: 1250
C:\>set nls_lang=.ee8mswin1250
C:\>sqlplus test/test
SQL*Plus: Release 11.1.0.6.0 - Production on Fri May 23 21:25:29 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the OLAP option
SQL> select * from nls_database_parameters where parameter like '%CHARACTERSET';
PARAMETER              VALUE
NLS_CHARACTERSET       AL32UTF8
NLS_NCHAR_CHARACTERSET AL16UTF16
SQL> select unistr('\010d \00e8') val, utl_i18n.escape_reference(unistr('\010d \00e8'),'us7ascii') NCR from dual;
VAL NCR
č e c e
SQL> select unistr('\010d \00e8') val, utl_i18n.escape_reference(unistr('\010d \00e8'),'we8iso8859p1') NCR from dual;
VAL NCR
č e &# x10d; e     <- "è"
SQL> select unistr('\010d \00e8') val, utl_i18n.escape_reference(unistr('\010d \00e8'),'ee8iso8859p2') NCR from dual;
VAL NCR
č e č &# xe8;
SQL> select unistr('\010d \00e8') val, utl_i18n.escape_reference(unistr('\010d \00e8'),'cl8iso8859p5') NCR from dual;
VAL NCR
č e &# x10d; &# xe8;In the US7ASCII case, where it should be possible for all non-ascii characters to be escaped, it seems as if the actual escape step is skipped over.
Hope this helps to understand whether utl_i8n is usable or not in your case.
Message was edited by:
orafad
Fixed replaced character references :)

Replacing non-ascii characters in String

I have a site where the user enters data in a rich text
editor (ktml4) that gets stored into a database (mysql). There are
non ascii characters getting into the data, I'm assuming that they
are copying and pasting from Word. Unfortunately in this situation,
changing that process isn't an option.
Currently, this is the only character that is causing me
problems:
http://www.zvon.org/other/charSearch/PHP/search.php?request=ffa0&searchType=3
I would just like to replace the non-ascii characters with a
space when I read them from the database. Something like:
#Replace(result.column, '\xffa0', ' ')#
However, I believe that code looks for the string "\xffa0",
not the character \xffa0.
Is there anyway to do this?

quote:
Originally posted by:
BuckLemke
quote:
Originally posted by:
Dan Bracuk
rereplace might work.
Can you give an example of how to pass a non-ascii character
to REReplace?
Regular expressions are not my strength, but the approach I
was considering was, "if it's not an ascii character, make it a
space". Then you pass the entire string at once.

Non ascii characters are padding without reason

Hi all,
here is my issue :
I have description field in my jsp page, when user enters some non ASCII characters as shown below :
This is user had entered the input string is :
"Hello Ã?Â?Ã?Â?Ã?Â?Ã?Â Hello" (without quotes)
When he edits for the first time without change anything in the the string and save, then it became :
"Hello Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã? Hello" (without quotes)
Then again one more time, it became :
"Hello Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â?Ã?Â? Hello" (without quotes)
Like wise it is getting increased its size. I'm saving the data to Oracle 10g database from jsp.
Please suggest what to do to rectify the problem.
Thanks & regards,
Achchayya

But I didnt changed anything from server.xml except two changes
1) from : <?xml version='1.0' encoding='iso-8851-1'?>
    to : <?xml version='1.0' encoding='UTF-8'?>
2)
from : <Connector port="8888" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
to : <Connector port="8888" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443"
               URIEncoding="UTF-8"/>here is my JSP :
<%@ page pageEncoding="UTF-8" %>
<html>
<head>
<title>The servlet example </title>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body>
<h1>A simple web application</h1>
<form method="POST" action="HelloWorld">
<label for="name">Enter your name </label>
<input type="text" id="name" name="name"/><br><br>
<input type="submit" value="Submit Form"/>
<input type="reset" value="Reset Form"/>
</form>
</body>
</html>Servlet Code :
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class HelloWorld extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
* Get the value of form parameter
     System.out.println("response char set "+response.getCharacterEncoding());
     System.out.println("request char set "+request.getCharacterEncoding());
response.setCharacterEncoding("UTF-8");
String name = request.getParameter("name");
String welcomeMessage = "Welcome "+name;
System.out.println("Name : "+name);
* Set the content type(MIME Type) of the response.
response.setContentType("text/html");
PrintWriter out = response.getWriter();
* Write the HTML to the response
out.println("<html>");
out.println("<head>");
out.println("<title> A very simple servlet example</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>"+welcomeMessage+"</h1>");
out.println("</body>");
out.println("</html>");
out.close();
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
     response.setCharacterEncoding("UTF-8");
     doPost(request, response);
} web.xml :
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>HelloWorld</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>/HelloWorld</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>
HelloWorld.html
</welcome-file>
</welcome-file-list>
<context-param>
     <param-name>PARAMETER_ENCODING</param-name>
     <param-value>UTF-8</param-value>
</context-param>
</web-app>please have a look at my files and suggest me BalusC.
Thanks for your patience.
regards,
Achchayya
Edited by: achayya on Oct 16, 2009 7:26 AM

Removing Non Ascii Characters.

Dear Friends,
In our application, User copying some data from a document and pasting in a field "Comments".
If that data consists anything like bullets,arrows of word document. It is inserting some Non keyboard characters into database like below.
â¢ Analysys
â¢ Do
â¢ Now
â¢ When
â¢ As
â¢ We
donât know how much he love sthe testingâI am not crazyhâ
I AM âUSERâ ï»ï»ï¨
ï¨
ï®
ï¼ Uu
ï¼ Yy
ï¼ tt
Now user asking to remove all those Non-ASCII characters from Comments Column. Please help!

Hi Santosh,
I can remember that I have given you the REGEXP_REPLACE query earlier which you have specified and told you to read some document about it to modify according to your need. It is not very wise thing to depend on others every time.
Re: Removing Junk Characters.
Anyway, REGEXP_REPLACE(str,'[^[a-z,A-Z,0-9,chr(0)-chr(127)[:space:]]]*','') can give you some pointer (not tested).

Cannot login with password containing non-ascii characters

Hello,
I have web application, form based login. UTF-8 is specified "everywhere".
And it works, except for passwords.
If user register itself with password containing non-ascii characters, it is correctly written in database, but when doing either programmatic login or normal form based login, if fails.
If the password is only ascii, it works.
Username of login could be ascii or non-ascii, it doesn't matter, both works.
I'm using sun java application server 9.1.
jdbc realm.
I'm not using hashing passwords, just clean (now)
I tried configure realm Charset: UTF8 as last chance, but it doesn't work either.
The problem is only with non-ascii characters in password.
Any help very appreciated
Thanks a lot

hi,
I know all that, but that's not the case. My app uses preparedStatements, everything is properly configured, in all pages, utf-8 is going from user to db and back without any problems.
The only problem is with password field. As I am using form based login, with jdbc realm configured (again, nicely working when only ascii characters), I have very little chance to do something bad through the login phase.
I'm not talking about special characters, I'm talking about non-ascii characters, let's say - Chinese, arabish, Russian alphabet etc.
When user registers (my code), the fields are properly written to db. I have checked that, trust me.
But the Sun app server realm seems to have some problems with the password field.
(realm uses jdbc connection to mysql, the url contains all extra parameters to be sure about utf8. there is nothing more what can be configured...)
If I try other alphabet codes in login and ascii in password, it works. But soon, as I use other alphabet code also in password, it doesn't work anymore.
My only idea is, that I could try MD5 to create ascii only characters (I hope it works that way) on the client with javascript and then set Digest to MD5 in realm configuration. But still, it seems very strange. The clear way storage should also function? (now set Digest to 'none')
Is it a bug of Sun App Server?
thanks

Search for users and non-ASCII characters

I am having a little issue with the "Accounts - Find Users" functionality. The search breaks on what I assume is non-ASCII characters (we use the following three up here in Denmark: �, �, �). To be precise, I have a user with the first name "J�rgen". Searching for first names starting with "J" works just fine but "J�" returns zero matches.
My setup is with two machines, one (A) holding the MySQL database and one (B) serving Identity Manager on top of tomcat.
Both A and B are RHEL boxes, and both have da_DK.UTF-8 as default locale.
MySQL's /etc/my.cnf file has the following entry (as recommended in create_waveset_tables.mysql):
[mysqld]
default-character-set=utf8
default-collation=binFor clarity, some functionality works just fine in Identity Manager with these non-ASCII characters such as adding a user whose name contains non-ASCII characters (not only �� but also � for example). At the moment, it appears to be the search functionality which is not working correctly as I would expect it to. I'm still on the fence concerning whether I've missed something in terms of configuration, or whether this is a limitation.
Does anyone know whether this problem is on my side or the software's side?

I am having a little issue with the "Accounts - Find Users" functionality. The search breaks on what I assume is non-ASCII characters (we use the following three up here in Denmark: �, �, �). To be precise, I have a user with the first name "J�rgen". Searching for first names starting with "J" works just fine but "J�" returns zero matches.
My setup is with two machines, one (A) holding the MySQL database and one (B) serving Identity Manager on top of tomcat.
Both A and B are RHEL boxes, and both have da_DK.UTF-8 as default locale.
MySQL's /etc/my.cnf file has the following entry (as recommended in create_waveset_tables.mysql):
[mysqld]
default-character-set=utf8
default-collation=binFor clarity, some functionality works just fine in Identity Manager with these non-ASCII characters such as adding a user whose name contains non-ASCII characters (not only �� but also � for example). At the moment, it appears to be the search functionality which is not working correctly as I would expect it to. I'm still on the fence concerning whether I've missed something in terms of configuration, or whether this is a limitation.
Does anyone know whether this problem is on my side or the software's side?

Find non ascii characters on Table

I am trying to find all non-ascii characters in a specific field on a 10.2G table.
Any select statement that can help?
Thanks!

Charlov wrote:
I am trying to find all non-ascii characters in a specific field on a 10.2G table.
Any select statement that can help?
Thanks!Perhaps something like this...
select *
from table
where regexp_like(column,'[^ -'||chr(126)||']')Assuming you are taking ascii characters as being space to chr(126)

Inserting non-ascii characters to ORACLE using SQLPLUS

Hi
I'm using Oracle 10.2.
I would like to insert data with non-ascii characters, like éñ etc.
For example:
INSERT INTO FOO(NAME) VALUES ('abcñ');
The problem is this - when I use SQLDeveloper with this query - there's no problem. However when I use SQLPLUS - I see the ñ character messed up.
Most environments use some kind of escaping mechanism (like the \uXXXX in JAVA or %XX in URL escaping), but I simply can't find how to do so in SQLPLUS.
Can somebody help please?

Are you using "char" or "nchar" character datatypes? Make sure that the database character set defines the language script you need to support (see nls_database_parameters).

Filling clob with non ascii characters

Hello,
I have had some problems with clobs and usage of german
umlauts (��). I was'nt able to insert or update
strings containing umlaute in combination with string
binding. After inserting or updating the umlaut
characters were replaced by strange (spanish) '?'
which were upside down.
However, it was working when I did not use string bindung.
I tried varios things, after some time I tracked
the problem down to to oracle.toplink.queryframework.SQLCall.java. In the
prepareStatement(...) you find something
like
ByteArrayInputStream inputStream = new ByteArrayInputStream(((String) parameter).getBytes());
// Binding starts with a 1 not 0.
statement.setAsciiStream(index + 1, inputStream,((String) parameter).getBytes().length);
I replaced the usage of ByteArrayInputStram with CharArrayReader:
// TH changed, 26.11.2003, Umlaut will not work with this.
CharArrayReader reader = new CharArrayReader(((String) parameter).toCharArray());
statement.setCharacterStream(index + 1, reader, ((String) parameter).length() );
and this worked.
Is there any other way achieving this? Did anyone
get clobs with non ascii characters to work?
Regards -- Tobias
(Toplink 9.0.3, Clob was mapped to String, Driver was Oracle OCI)

I don't think the console font is the problem. I use Lat2-Terminus16 because I read the Beginner's Guide on the wiki while installing the system.
My /etc/vconsole.conf:
KEYMAP=de
FONT=Lat2-Terminus16
showconsolefont even shows me the characters missing in the file names; e.g.: Ö, Ä, Ü

Does Oracle User Password can contain non-ASCII characters?

Hi Experts,
Can we create a user with password containing non-ASCII characters like "Ro'çá".
I was able to create a database instance by providing the password for sys as "Ro'çá". But now i am not able to login from command prompt using sqlplus or SQLPLUS Application. I am getting below error:
C:\Documents and Settings\xyz>sqlplus system/Ro'çá@test
SQL*Plus: Release 10.2.0.1.0 - Production on Sun Jul 4 12:17:33 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
Enter user-name:
same in case i enclose the password in ""
C:\Documents and Settings\xyz>sqlplus system/"Ro'çá"@test
SQL*Plus: Release 10.2.0.1.0 - Production on Sun Jul 4 12:17:33 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
Enter user-name:
same in case i enclose the password in ""
Also using create user i am not able to create user with password in non-ASCII characters but alter user works and changes the password to non-ASCII characters when enclosed in quotes.
I wanted to know whether the password can contain non-ASCII characters or not?
Thanks in advance for your help.

I don't think that the characters used are allowed. See this doc which only mentions three characters to be used .
http://download.oracle.com/docs/cd/E11882_01/server.112/e10575/tdpsg_user_accounts.htm#BEICECGF
I did try the same but it didn't work for me either.
SQL> select * from V$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for 32-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
SQL> grant connect to user1 identified by Ro'çá;
ERROR:
ORA-01756: quoted string not properly terminated
SQL> grant connect to user1 identified by "Ro'çá";
Grant succeeded.
SQL> connect uesr1/"Ro'çá";
ERROR:
ORA-01017: invalid username/password; logon denied
Warning: You are no longer connected to ORACLE.
SQL> connect uesr1/"Ro'çá"
ERROR:
ORA-01017: invalid username/password; logon denied
SQL> connect uesr1/"Ro'çá"
ERROR:
ORA-01017: invalid username/password; logon denied
SQL>HTH
Aman....

Non ascii characters being sent from a parameter in a form

Hi!
I have seen many topics posted on passing non ascii characters through parameters from one servlet to another and converting them into whatever format is necessary.
However, I have not seen anyone answer the following question. I have a jsp page (html) with the character encoding set to utf-8. The user inputs some data in to a text field which is inside a form. The data could be in non ascii characters such as hebrew or arabic. This form is then sent to another jsp where i try to retreive the data from teh text field. No matter what i do, i cannot get the data presented correctly. It is either question marks or other wierd symbols.
I have tried every permetation of encoding of the actual html page, the ecoding of the string from request.getParameter etc but it still is not presented on the new html page correctly.
Can anyone help??
Spencer

Ok, I solved the problem.
I had to put at the top request.setCharacterEncoding("utf-8");
Spencer

Cannot rename file with non-ASCII characters when using the

My application moves files from one directory to another by calling File[] srcFiles = srcDir.listFiles() to get a list of files in the source directory, and then calling srcFiles.renameTo(destFile) to rename each file.
This does not work (renameTo returns false and the file is not moved) under the following circumstances:
- the file's leaf name contains non-ASCII characters, for example "�"
- the OS is Solaris 9
- the LANG and LC_* environment variables are unset, i.e. the C locale is being used
If I set the LANG environment variable to, for example, en_GB.UTF-8 then the rename succeeds.
I have tried calling srcFiles[index].getName().getBytes("UTF-8") and the non-ASCII characters are being replaced with ? (0x3f) characters when LANG is unset.
Is this a bug in the JRE? I would argue that since my code does not actually manipulate the filename (I just use the File object that File.listFiles() gives me) then the rename should succeed. Of course I would not expect the file name to be displayed correctly if I printed it out.
I have reproduced this behaviour with JDK 1.4.2_05 and 1.5.0_04 on Solaris 9.
Francis

Thanks for the info Alan.
I considered setting the locale in the environment (this sounds like the "correct" fix to me and we might implement it later), but this application shares a WebLogic server with many other applications so we would have to do a huge amount of testing to make sure that the locale change wouldn't break the other apps. In the end I worked around the problem by making the code that generates the filenames in the first place strip out any non-ASCII characters (the names of the files are not critically important).
Looking forward to JSR-203, in the meantime perhaps a note about this behaviour in the java.io.File javadoc would be useful.

Problems with non-ASCII characters on Linux Unit Test Import

I found a problem with non-ASCII characters in the Unit Test Import for Linux. This problem does not appear in the Unit Test Import for Windows.
I have attached a Unit Test export called PROC1.XML It tests a procedure that is included in another attachment called PROC1.txt. The unit test includes 2 implementations. Both implementations pass non-ASCII characters to the procedure and return them unchanged.
In Linux, the unit test import will change the non-ASCII characters in the XML file to xFFFD. If I copy/paste the the non-ASCII characters into the Unit Test after the import, they will be stored and executed correctly.
Amazon Ubuntu 3.13.0-45-generic / lubuntu-core
Oracle 11g Express Edition - AL32UTF8
SQL*Developer 4.0.3.16 Build MAIN-16.84
Java(TM) SE Runtime Environment (build 1.7.0_76-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.76-b04, mixed mode)
In Windows, the unit test will import the non-ASCII characters unchanged from the XML file.
Windows 7 Home Premium, Service Pack 1
Oracle 11g Express Edition - AL32UTF8
SQL*Developer 4.0.3.16 Build MAIN-16.84
Java(TM) SE Runtime Environment (build 1.8.0_31-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.31-b07, mixed mode)
If SQL*Developer is coded the same between Windows and Linux, The JVM must be causing the problem.

Set the System property "mail.mime.decodeparameters" to "true" to enable the RFC 2231 support.
See the javadocs for the javax.mail.internet package for the list of properties.
Yes, the FAQ entry should contain those details as well.

Problem with non-ASCII characters on TTY

Although I'm not a native speaker, I want my system language to be English (US), since that's what I'm used to. However I have a lot of files which have German language in their file names.
My /etc/locale.conf has en_US.UTF-8 and de_DE.UTF-8 enabled. My /etc/locale.conf contains only the line
LANG=en_US.UTF-8
The German file names show up fine within Dolphin and Konsole (ls -a). But they look weird on either of the TTYs (the "console" you get to by pressing e.g. ctrl+alt+F1). They have other characters like '>>' or the paragraph symbol where non-ASCII characters should be. Is it possible to fix this?

I don't think the console font is the problem. I use Lat2-Terminus16 because I read the Beginner's Guide on the wiki while installing the system.
My /etc/vconsole.conf:
KEYMAP=de
FONT=Lat2-Terminus16
showconsolefont even shows me the characters missing in the file names; e.g.: Ö, Ä, Ü

Regarding non-ASCII characters columns in a database

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