1、问题
Database character set (AL32UTF8) and Client character set (ZHS16GBK) are different.
Character set conversion may cause unexpected results.
Note: you can set the client character set through the NLS_LANG environment variable or the NLS_LANG registry key in
HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\KEY_OraClient11g_home2.
2、解决方法
把SIMPLIFIED CHINESE_CHINA.ZHS16GBK
改为 SIMPLIFIED CHINESE_CHINA.AL32UTF8