Oracle 11g修改中文字符集

Oracle 11g修改中文字符集

安装了个Oracle 11g发现中文保存到DB之后变乱码，用下面的方法修改DB字符集

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D:>sqlplus /nolog

SQL*Plus: Release 11.2.0.1.0 Production on Wed Nov 7 23:50:56 2012

Copyright (c) 1982, 2010, Oracle. All rights reserved.

SQL> conn / as sysdba –需要使用SYSDBA帐户

Connected.

SQL> startup mount

ORA-01081: cannot start already-running ORACLE - shut it down first

SQL> shutdown immediate; –停止数据库

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> startup mount –启动数据库到 mount 状态

ORACLE instance started.

Total System Global Area 1686925312 bytes

Fixed Size 2176368 bytes

Variable Size 989858448 bytes

Database Buffers 687865856 bytes

Redo Buffers 7024640 bytes

Database mounted.

SQL> alter session set sql_trace=true;

Session altered.

SQL> alter system enable restricted session;

System altered.

SQL> alter system set job_queue_processes=0;

System altered.

SQL> alter system set aq_tm_processes=0;

System altered.

SQL> alter database open;

Database altered.

SQL> set linesize 120; –INTERNAL_USE 参数可以忽略超集检查

SQL> ALTER DATABASE character set INTERNAL_USE AL32UTF8; –修改字符集

Database altered.

SQL> shutdown immediate; –再次关闭数据库

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL> STARTUP –启动数据库

ORACLE instance started.

Total System Global Area 1686925312 bytes

Fixed Size 2176368 bytes

Variable Size 989858448 bytes

Database Buffers 687865856 bytes

Redo Buffers 7024640 bytes

Database mounted.

Database opened.

SQL> select * from v$nls_parameters where parameter = ‘NLS_CHARACTERSET’;

PARAMETER

VALUE

NLS_CHARACTERSET

AL32UTF8

SQL>