本文介绍了解决PL/SQL Developer启动时出现的数据库字符集与客户端字符集不一致的问题。通过修改注册表中NLS_LANG键的值，将字符集从ZHS16GBK调整为AL32UTF8，以确保数据库与客户端的字符集一致，避免因字符集转换导致的意外结果。
启动PL/SQL Developer是弹出来的错误信息：
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 XXX。
打开注册表,通过命令regedit。找到到文中提示（XXX）的路径，发现NLS_LANG键的值为:
SIMPLIFIED CHINESE_CHINA.ZHS16GBK
修改为：SIMPLIFIED CHINESE_CHINA.AL32UTF8即可
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 XXX。
打开注册表,通过命令regedit。找到到文中提示（XXX）的路径，发现NLS_LANG键的值为:
SIMPLIFIED CHINESE_CHINA.ZHS16GBK
修改为：SIMPLIFIED CHINESE_CHINA.AL32UTF8即可
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