linux 下修改字符集的问题

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SQL> shutdown immediate;

SQL> startup mount;

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 orcl character set internal_use ZHS16GBK;

Database altered.

SQL> shutdown immediate;

ORACLE instance shut down.
SQL> startup;