修改Oracle數據庫的編碼

方法一：
      sql / as sysdba
      shutdown immediate;
      startup mount;
      alter session set sql_trace=ture;
      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 utf8;
      alter session set sql_trace=false;
      shutdown immediate;;
      startup;
方法二：
      sql / as sysdba
      shutdown immediate;
      startup;
      update props$ set VALUE$='UTF8' where NAME='NLS_NCHAR_CHARACTERSET';

 

原文博客：https://blog.csdn.net/liu__________/article/details/51542516