oracle 更改字符集

事件环境：

服务器A字符集和服务器B字符集不一致.

服务器A exp命令导出 dmp文件后,在服务器B上 imp导入中文出现乱码.

解决问题思路:更改服务器B上面oracle 服务的字符集(实质等同于服务器A oracle的字符集).

1 查看服务器A字符集

sql>conn sys as sysdba

sql>select * from v$nls_parameters where parameter='NLS_CHARACTERSET';

2. 删除服务器B上面已经存在的用户表空间,并新建表空间用户

drop user IDHR cascade;
drop tablespace IDHRDEVDB;

--初始化数据库信息
create tablespace  IDHRDEVDB
logging
datafile 'D:\oraclexe\app\oracle\oradata\IDHRDEVDB\IDHRDEVDB.DBF'
size 32m
autoextend on
extent management local;

CREATE USER IDHR IDENTIFIED BY IDHR _0525
PROFILE DEFAULT
DEFAULT TABLESPACE IDHRDEVDB
ACCOUNT UNLOCK;

grant all privileges to IDHR;
grant   sysdba   to   IDHR;

3.修改服务器B的oracle字符集
http://blog.csdn.net/lyn_bigdream/article/details/7473278

shutdown immediate;
startup mount;
alter session set sql_trace=true;
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 internal_use AL32UTF8;
alter session set sql_trace=false;
shutdown immediate;
startup;

4 再次在服务器B上面导入dmp数据

imp IDHR/IDHR_0525 file=F:\AIT\Lottes\DB\初始化数据库语句\Database\ss_hr.dmp  log=F:\AIT\Lottes\DB\初始化数据库语句\Database\ss_hr.log  fromuser=indonesiaprod2

5 远程连接服务器B 数据库,中文显示正常.