How to deal with oracle encoding error?

Question

linux

Hello.
When choosing from Oracle data with a Russian name - I get the output

select 'ыаывэ' from dual

+-------------+
| 'N??°N???N?'|
+-------------+
| N??°N???N  |
+-------------+

How to fix this problem?
I work on Centos 7.
Thank you)

Answer 1

NLS_LANG for session set