1、使用管理员账号登录到oracle
C:\Users\Administrator>sqlplus / as sysdba
2、查看字符集
SQL>select userenv('language') from dual;
3、修改字符集为UTF8
SQL>shutdown immediate;
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 utf8;
SQL>shutdown immediate;
SQL>startup;