ORACLE客户端乱码--修改Oracle客户端字符集

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修改Oracle客户端字符集方法:

1:可以通过修改注册表键值永久设置，类似于这样的键值:
HKEY_LOCAL_MACHINE/SOFTWARE/Oracle/HOME0下,
如一般的简体中文
nls_lang＝SIMPLIFIED CHINESE_CHINA.ZHS16GBK

2:查看数据库当前字符集参数设置

SQL> select userenv('language') from dual;

USERENV('LANGUAGE')
----------------------------------------------------
SIMPLIFIED CHINESE_CHINA.ZHS16GBK

3:打开CMD窗口,乱码情况

C:/Documents and Settings/Administrator>set NLS_LANG=american_america.AL32UTF8

C:/Documents and Settings/Administrator>sqlplus

SQL*Plus: Release 9.2.0.1.0 - Production on 星期六 4月 10 10:59:53 2010

请输入用户名: scott
请输入口令:

连接到:
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production

SQL> select empno,ename,sal from emp where empno=7779;

EMPNO ENAME SAL
---------- ------------------------------ ----------
7779 鏉ㄥ钩 6080

4:打开另外个CMD窗口,正常情况

C:/Documents and Settings/Administrator>set NLS_LANG=SIMPLIFIED CHINESE_CHINA.ZHS16GBK

C:/Documents and Settings/Administrator>sqlplus

SQL> select empno,ename,sal from emp where empno=7779;

EMPNO ENAME SAL
---------- ---------- ----------
7779 杨平 6080