修改oracle字符集

查看字符集

select userenv('language') from dual;

重启机器

[root@VM-0-3-centos ~]# su -l oracle
[oracle@VM-0-3-centos ~]$ sqlplus /nolog
SQL> conn /as sysdba;
SQL> shutdown immediate;
SQL> startup mount 
ORACLE instance started.

Total System Global Area  771749224 bytes
Fixed Size                  9139560 bytes
Variable Size             666894336 bytes
Database Buffers           92274688 bytes
Redo Buffers                3440640 bytes
Database mounted.
SQL> ALTER SYSTEM ENABLE RESTRICTED SESSION; 

System altered.

SQL> ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0; 

System altered.

SQL> ALTER SYSTEM SET AQ_TM_PROCESSES=0; 

System altered.

SQL> ALTER DATABASE OPEN;
SQL> ALTER DATABASE character set INTERNAL_USE ZHS16GBK; 
Database altered.

SQL> SHUTDOWN IMMEDIATE;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.

Total System Global Area  771749224 bytes
Fixed Size                  9139560 bytes
Variable Size             666894336 bytes
Database Buffers           92274688 bytes
Redo Buffers                3440640 bytes
Database mounted.
Database opened.