sqplus "/as sysdba"sql>shutdown mount;
sql>startup mount;
sql>alter system enable restricted session;
sql>alter system set job_queue_processes=0;
sql>alter system set aq_tm_processes=0;
sql>alter database open;
sql>alter database character set internal_use.zhs16gbk;
sql>select * from v$nls_parameters;
重新启动，检查是否更改完成