Oracle数据库的字符集的查看与修改

oracle查看字符集
select userenv('language') from dual;
    
Oracle10G,xe修改可以采用下面的方法

connect system as sysdba ;
shutdown immediate ;
startup mount ;
alter system enable restricted session ;
alter system set JOB_QUEUE_PROCESSES=0;
alter system set AQ_TM_PROCESSES=0;
alter database open ;
alter database character set internal_use ZHS16GBK ;
shutdown immediate ;
startup ;
      
老版本可以参考

STARTUP MOUNT;
ALTER SYSTEM ENABLE RESTRICTED SESSION;
ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0;
ALTER SYSTEM SET AQ_TM_PROCESSES=0;
ALTER DATABASE OPEN;
ALTER DATABASE CHARACTER SET ZHS16GBK;
ALTER DATABASE national CHARACTER SET ZHS16GBK;
SHUTDOWN IMMEDIATE;
STARTUP;