1.肯定數據庫字符集
SQL> select userenv('language') from dual;
USERENV('LANGUAGE')
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AMERICAN_AMERICA.ZHS16GBK
2.肯定環境變量字符集:
export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK
3.根據前面數據庫字符集 肯定crt字符集
session option --> appearance -->character encoding --->(GB2132或GB18030)
4.用sqlplus向數據庫插入"中文"