--查看oracle数据库字符集：
sql代码
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代码
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 al32utf8;
sql> shutdown immediate;
sql> startup;
修改oracle用户的nls_lang
编辑/home/oracle/.bash_profile
bash代码
export nls_lang=simplified chinese_china.al32utf8
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