Oracle因安装时未设定字符集导致中文乱码的解决方案

在Centos6.5上安装Oracle11g没有设定字符集，采用的是操作系统默认字符集：WE8MSWIN1252，将字符集修改为：ZHS16GBK。

 

[oracle@xserver ~]$ sqlplus / as sysdba

 

SQL*Plus: Release 11.2.0.1.0 Production on Sat Dec 28 12:17:01 2013

 

Copyright (c) 1982, 2009, Oracle. All rights reserved.

 

 

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

 

SQL> select * from nls_database_parameters where parameter='NLS_CHARACTERSET';

 

PARAMETER

------------------------------

VALUE

--------------------------------------------------------------------------------

NLS_CHARACTERSET

WE8MSWIN1252

 

SQL> shutdown immediate

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> startup mount

ORACLE instance started.

 

Total System Global Area bytes

Fixed Size 2213776 bytes

Variable Size bytes

Database Buffers bytes

Redo Buffers 7360512 bytes

Database mounted.

SQL> alter system enable restricted session;

 

System altered.

 

SQL> show parameter job_queue_processes;

 

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

job_queue_processes integer1000

SQL> alter system set job_queue_processes=0;

 

System altered.

 

SQL> alter database open;

 

Database altered.

 

SQL> alter database character set ZHS16GBK;

alter database character set ZHS16GBK

*

ERROR at line 1:

ORA-12712: new character set must be a superset of old character set

 

SQL> alter database character set internal_use ZHS16GBK;

 

Database altered.

 

SQL> select * from nls_database_parameters where parameter='NLS_CHARACTERSET';