查看及修改oracle编码格式方法(整理)

--查看oracle数据库字符集：
select userenv('language') from dual;
--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;
sql> shutdown immediate;
sql> startup;