How do you check the Oracle database character set?

SQL> select value from nls_database_parameters where parameter='NLS_CHARACTERSET';

VALUE
--------------------------------------------------------------------------------
UTF8

tnsping错误 TNS-03505: Failed to resolve name

export TNS_ADMIN=/xxximp/shared/config/dbservices/oracle/ 

查询Oracle数据库的字符集

原文：https://www.cnblogs.com/chenjo/p/12221621.html