修改Oracle字符集为 ZHS16GBK

SQL*Plus: Release 11.2.0.1.0 Production on Wed Aug 10 13:12:48 2016

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> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.

Total System Global Area 5.3982E+10 bytes
Fixed Size 2218032 bytes
Variable Size 2.9259E+10 bytes
Database Buffers 2.4428E+10 bytes
Redo Buffers 292569088 bytes
Database mounted.

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> 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> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.

SQL> startup
ORACLE instance started.

Total System Global Area 5.3982E+10 bytes
Fixed Size 2218032 bytes
Variable Size 2.9796E+10 bytes
Database Buffers 2.3891E+10 bytes
Redo Buffers 292569088 bytes
Database mounted.
Database opened.

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

USERENV('LANGUAGE')
----------------------------------------------------
AMERICAN_AMERICA.ZHS16GBK