Insert Unicode Using cx-Oracle and Setting NLS_LANG for Oracle

set enviroment in python or bash

• os.environ[“NLS_LANG”] = “TRADITIONAL CHINESE_HONG KONG.AL32UTF8”
  or
• export NLS_LANG=“TRADITIONAL CHINESE_HONG KONG.AL32UTF8”

get lang in Oracle

• SELECT USERENV ('language') FROM DUAL;
• select * from v$nls_parameters WHERE parameter IN ( 'NLS_LANGUAGE', 'NLS_TERRITORY', 'NLS_CHARACTERSET');
• SELECT * from NLS_DATABASE_PARAMETERS WHERE parameter IN ( 'NLS_LANGUAGE', 'NLS_TERRITORY', 'NLS_CHARACTERSET');

others

• select * FROM V$NLS_VALID_VALUES;
• select * from NLS_SESSION_PARAMETERS;
• select * from database_properties;