查看的话可以这样:
select userenv(‘language’) from dual
修改:
SQL>conn / as sysdba; 若此时数据库服务器已启动,则先执行SHUTDOWN IMMEDIATE命令关闭数据库服务器,然后执行以下命令:
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 ZHS16GBK;
SQL>ALTER DATABASE national CHARACTER SET ZHS16GBK;
SQL>SHUTDOWN IMMEDIATE;
SQL>STARTUP