I use sqlplus and all non-Latin characters appear as '?' when I run select queries. When I run insert or update queries with non-Latin characters I get question marks on a web page.
select * from nls_database_parameters; gives
I've exported the NLS_LANG variable:
export NLS_LANG=RUSSIAN_CIS.AL32UTF8, but this didn't make any changes.
What is the problem? Of course I use UTF-8 working in Linux terminal and I can see the script file contents executing
If I execute
alter session set nls_language='russian' I also face with question marks in ora-xxxxx messages.