1.确定数据库字符集
SQL> select userenv('language') from dual; USERENV('LANGUAGE')
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AMERICAN_AMERICA.ZHS16GBK 2.确定环境变量字符集:
export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK 3.根据前面数据库字符集 确定crt字符集
session option --> appearance -->character encoding --->(GB2132或GB18030) 4.用sqlplus向数据库插入"中文"