查看及修改Oracle编码格式方法

--查看Oracle数据库字符集：

select userenv('language') from dual;

查询结果：

SIMPLIFIED CHINESE_CHINA.AL32UTF8

--修改oracle数据库字符集：（在SQL Plus中）

sql> conn / as sysdba; 

sql> shutdown immediate;

database closed.

database dismounted.

oracle instance shut down.

sql> startup mount;

oracle instance started.

total system global area  135337420 bytes

fixed size                          452044 bytes

variable size                     109051904 bytes

database buffers              25165824 bytes

redo buffers                      667648 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;

database altered.

sql> alter database character set internal_use JA16SJIS;      //ZHS16GBK//UTF8

sql> shutdown immediate;

sql> startup;