Remove un recognized characters from a field of a table.

Is there any way to remove un recognized characters from content of field in a table. Please help.
Thx

If you know the characters that you want removed, you may have success using the TRANSLATE function.
The key here as stated in the SQL Language Reference is
the extra characters at the end of from_string have no corresponding characters in to_string. If these extra characters appear in char, then they are removed from the return value.
The other useful function to remove unwanted junk is REGEXP_REPLACE - but you must be on 10g or later for regular expression support. Translate is supported at least as far back as 8i, perhaps further.

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Removing last 2 characters from string field

I am trying to remove the last 2 characters of a string field.
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i tried instrrev but i that didnt do it.
is there a way to say
start position1 and go the R
thanks

formula,
left (field, length_formula) is the solution
the length_formula is the number of chars form left
f.i
left(field, length (field)-2)
left (field, InstrRev, field,"R")
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Removing non-numeric characters from string

Hi there,
I need to have the ability to remove non-numeric characters from a string and I do not know how to do this.
Does any one know a way?
Example:
Present String: (02)-2345-4607
Required String: 0223454607
Thanks in advance

Dear NickM
Try this this will work...........
create or replace function char2num(mstring in varchar2) return integer
is
-- Function to remove Special characters and alphebets from phone no. string field
-- Author - Valid Bharde.(India-Mumbai)
-- Date :- 20 Sept 2006.
-- This Function will return numeric representation.
-- The Folowing program is gifted to NickM with respect to his post on oracle site regarding Removing non-numeric characters from string on the said date
mstatus number :=0;
mnum number:=0;
mrefstring varchar2(50);
begin
mnum := length(mstring);
for x in 1..mnum loop
if (ASCII(substr(upper(mstring),x,1)) >= 48 and ASCII(substr(upper(mstring),x,1)) <= 57) then
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copy the above program and use it at function for example
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CHAR2NUM('(022)-453452781')
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Chao!!!

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Hi,
While populating the field catlog do the following thing to   avoid zeros.
wa_fieldcat-tabname = 'I_OUTPUT'.    " Curr
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Hi,
I am using the java.util.regex.* package to removing the control characters from a text file. I got below programming from the java.sun site.
I am able to successfully compile the file and the when I try to run the file I got the error as
------------------------------------------------------------------------D:\Debi\datamigration>java Control
Exception in thread "main" java.util.regex.PatternSyntaxException: Illegal repet
ition
{cntrl}
at java.util.regex.Pattern.error(Pattern.java:1472)
at java.util.regex.Pattern.closure(Pattern.java:2473)
at java.util.regex.Pattern.sequence(Pattern.java:1597)
at java.util.regex.Pattern.expr(Pattern.java:1489)
at java.util.regex.Pattern.compile(Pattern.java:1257)
at java.util.regex.Pattern.<init>(Pattern.java:1013)
at java.util.regex.Pattern.compile(Pattern.java:760)
at Control.main(Control.java:24)
Please help me on this issue.
Thanks&Regards
Debi
import java.util.regex.*;
import java.io.*;
public class Control {
public static void main(String[] args)
throws Exception {
//Create a file object with the file name
//in the argument:
File fin = new File("fileName1");
File fout = new File("fileName2");
//Open and input and output stream
FileInputStream fis =
new FileInputStream(fin);
FileOutputStream fos =
new FileOutputStream(fout);
BufferedReader in = new BufferedReader(
new InputStreamReader(fis));
BufferedWriter out = new BufferedWriter(
new OutputStreamWriter(fos));
// The pattern matches control characters
Pattern p = Pattern.compile("{cntrl}");
Matcher m = p.matcher("");
String aLine = null;
while((aLine = in.readLine()) != null) {
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//string.
String result = m.replaceAll("");
out.write(result);
out.newLine();
in.close();
out.close();

Hi,
I used the code below with the \p, but I didn't able to complie the file. It gave me an
D:\Debi\datamigration>javac Control.java
Control.java:24: illegal escape character
Pattern p = Pattern.compile("\p{cntrl}");
^
1 error
Please help me on this issue.
Thanks&Regards
Debi
// The pattern matches control characters
Pattern p = Pattern.compile("\p{cntrl}");
Matcher m = p.matcher("");
String aLine = null;

Removing Non-numeric characters from Alpha-numeric string

Hi,
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i want to write something generic (suppose some function to which i pass the column)
thanks in advance,
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This variation uses the like operators pattern recognition to remove non alphanumeric characters. It also
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Code Snippet
CREATE FUNCTION dbo.RemoveChars(@Str varchar(1000))
RETURNS VARCHAR(1000)
BEGIN
declare @NewStr varchar(1000),
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GO
Code to validate:
Code Snippet
declare @t table(
TestStr varchar(100)
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insert into @t values ('1-567-987-7655');
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Hello,
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thanks,
jose.

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¯\_(ツ)_/¯

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hi experts,
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Hi,
Try this one
data : begin of itab occurs 0,
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end of itab.
" though the length of MAKTX is 40 you only get 10 chars
select maktx from makt into table itab up to 10 rows.
if sy-subrc is initial.
endif.
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The FM u said
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vinsee

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Guys,
I have problem where I need to remove all non english (Latin) characters from a string, what should be the right API to do this?
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TIA
Nitin

Nitin_tiwari wrote:
I have a string which has Chinese as well as Japanese characters, and I only want to remove only Chinese characters.
What's the best way to go about it?Oh, I see!
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A language can use multiple scripts (for example Japanese uses Kanji, Hiragana and Katakana).
And if I remember correctly, then Japanese and Chinese texts share some characters on the Unicode plane (I might be wrong, 'though, since I speak/write neither of those languages).
These two facts make these kinds of detections hard to do. In some cases they are easy (separating latin-script texts from anything else) in others it may be much tougher or even impossible (Chinese/Japanese).

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Hi Everyone,
I would like to remove all NON-ASCII characters from a large string. For example, I am taking text from websites and would like to remove all the strange arabic and asian characters. How can I accomplish this?
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I would like to remove all NON-ASCII characters from a large string. I don't know if its a good method but try this:
str="\u6789gj";
output="";
for(char c:str.toCharArray()){
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System.out.println(output);
all the strange arabic and asian characters.Don't call them so.... I am an Indian Muslim ;-) ....
Thanks!

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Hi all....
Dooza very kindly helped me with trimming a string in an
earlier post, but
now i want to remove the last four characters from a string.
I really should know how to do this and will have to do some
bedtime reading
:-|
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Ah Dooza - Thank You.
To the rescue again :-D
You're helping me to see the logic...
Thanks Again
Andy
"Dooza" <[email protected]> wrote in message
news:gbafel$ra3$[email protected]..
> Andy wrote:
>> Hi all....
>> Dooza very kindly helped me with trimming a string
in an earlier post,
>> but now i want to remove the last four characters
from a string.
>> I really should know how to do this and will have to
do some bedtime
>> reading :-|
>>
>> But, for now, could someone help!
>
> Hi Andy,
> Try something like this:
> <%
> myStr = "this is my really long string"
> Response.Write(LEFT(myStr,LEN(myStr) -4))
> %>
>
> Dooza

Remove un recognized characters from a field of a table.

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