ORA-00911 error

Question

Hi.
I am developing a system which connects to an Oracle database, everything is set and working fine, but when I try to do a select in a table that contains a japanese name I get a ORA-00911 error. I've already done some research on the web and I found out that it's a invalid character problem and I have to set two things on windows registry (I don't remember exactly where, I am at home now). I followed the instructions but the problem is still happening.
has anyone here experienced a similar problem?

Answer 1

You didn't give us a version number nor did you provide the full text of the error message so we really can't help you much other than to suggest you enjoy your weekend.
I am currently working in SIMPLE_CHINESE and have not seen this specific issue but I make good use of the following two functions:
http://www.morganslibrary.org/reference/builtin_functions.html
Look up:
TO_SINGLE_BYTE and TO_MULTI_BYTE
This function may also be useful:
CREATE OR REPLACE FUNCTION IS_BYTE_VALID (str1 IN VARCHAR2, pos PLS_INTEGER, len PLS_INTEGER) RETURN BOOLEAN IS
BEGIN
  IF ASCII(SUBSTRB(str1, pos, len)) = 32 THEN
    RETURN FALSE;
  ELSE
    RETURN TRUE;
  END IF;
END is_byte_valid;