Oracle查询server字符集+修改字符集

1、查询服务端字符集

select userenv('language') from dual 

select * from v$nls_parameters; 

2、修改字符集

在SQL*PLUS 中，以DBA登录

>conn 用户名 as sysdba

然后执行以下命令

>shutdown immediate; (把database停了)

>startup mount; (把database重开去可更改情況)

>alter system enable restricted session;

>alter system set job_queue_processes=0;

>alter system set aq_tm_processes=0;

>alter database open;

>alter database character set utf8;

OR

>alter database character set internal_use utf8;

>shutdown immediate;

>startup; (重开正常oracle)

VMWare虚拟机Oracle11g测试可行。