[Linux] linux操作系统环境变量LANG和NLS_LANG的区别

export LANG=zh_CN.GB2312 
export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK 

$export LANG=zh_CN.GB2312 
$date 
2012年 11月 27日 星期二 16:20:35 CST

$export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK 

$sqlplus / as sysdba 
SQL*Plus: Release 10.2.0.4.0 - Production on Tue Nov 27 16:19:03 2012 
Copyright (c) 1982, 2007, Oracle. All Rights Reserved. 
Connected to: 
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production 
With the Partitioning, Real Application Clusters, OLAP, Data Mining 
and Real Application Testing options 
SQL> select sysdate from dual; 

SYSDATE 
------------ 
27-NOV-12

[root@blliu tmp]# locale 
LANG=zh_CN.gb2312 
LC_CTYPE="zh_CN.gb2312" 
LC_NUMERIC="zh_CN.gb2312" 
LC_TIME="zh_CN.gb2312" 
LC_COLLATE="zh_CN.gb2312" 
LC_MONETARY="zh_CN.gb2312" 
LC_MESSAGES="zh_CN.gb2312" 
LC_PAPER="zh_CN.gb2312" 
LC_NAME="zh_CN.gb2312" 
LC_ADDRESS="zh_CN.gb2312" 
LC_TELEPHONE="zh_CN.gb2312" 
LC_MEASUREMENT="zh_CN.gb2312" 
LC_IDENTIFICATION="zh_CN.gb2312" 
LC_ALL=

SQL> SELECT * 
2 FROM DATABASE_PROPERTIES 
3 WHERE PROPERTY_NAME IN 
4 ('NLS_LANGUAGE', 'NLS_TERRITORY', 'NLS_CHARACTERSET'); 

PROPERTY_NAME PROPERTY_VALUE DESCRIPTION 
------------------------------ ------------------------------ -------------------- 
NLS_LANGUAGE AMERICAN Language 
NLS_TERRITORY AMERICA Territory