- 操作系统语言：
[oracle@ocp01 ~]$ echo $LANG
zh_CN.UTF-8
2. 查询数据库语言：
SQL> select userenv('language') from dual;
USERENV('LANGUAGE')
SIMPLIFIED CHINESE_CHINA.AL32UTF8
3. 设置NLS_LANG
[oracle@ocp01 ~]$ grep -i nls ~/.bash_profile
NLS_LANG="SIMPLIFIED CHINESE_CHINA.AL32UTF8"
export ORACLE_BASE ORACLE_HOME ORACLE_SID NLS_LANG PATH
```
