How to change Japanese character set

Question

The below are my character set in my DB
NLS_CHARACTERSET=WE8ISO8859P1
NLS_NCHAR_CHARACTERSET=UTF8
Correct Answer (If I use english language the result is correct)
==========
select product(',','AB_BC ,DE') from dual;
(AB_BC, DE,,,)
After altering the parameter at session level to get Japanese character set I am getting wrong result
it is giving wrong result
==============
select product(',','A_BC ,DE') from dual;
(AB, BC , DE,,,,)
How to change at session leavel to get Japanese character set

Answer 1

user446367 wrote:
Correct Answer (If I use english language the result is correct)What does "use english language" mean in this context?
After altering the parameter at session level to get Japanese character set I am getting wrong resultThere is no such thing. Show us (copy paste) the commands and the resulting output, please.
select product(',','A_BC ,DE') from dual;As requested several times already in your other thread on the same subject, it would greatly help forum members to help you if you would post the pl/sql of this function.
AFAIK, product() is not a built-in standard Oracle function.
How to change at session leavel to get Japanese character setThat is probably not what's needed, but anyway, here's one simple example:
export NLS_LANG=.JA16SJIS
sqlplus u/p@svc
sql> ...