plsql developer查询结果显示乱码

 这个问题主要是字符集造成的。

以我的环境为例，oracle字符集为例：

输入sql语句select * from V$NLS_PARAMETERS查看字符集：

NLS_LANGUAGE	SIMPLIFIED CHINESE
NLS_TERRITORY	CHINA
NLS_CURRENCY	￥
NLS_ISO_CURRENCY	CHINA
NLS_NUMERIC_CHARACTERS	.,
NLS_CALENDAR	GREGORIAN
NLS_DATE_FORMAT	DD-MON-RR
NLS_DATE_LANGUAGE	SIMPLIFIED CHINESE
NLS_CHARACTERSET	AL32UTF8
NLS_SORT	BINARY
NLS_TIME_FORMAT	HH.MI.SSXFF AM
NLS_TIMESTAMP_FORMAT	DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT	HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT	DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY	￥
NLS_NCHAR_CHARACTERSET	AL16UTF16
NLS_COMP	BINARY
NLS_LENGTH_SEMANTICS	BYTE
NLS_NCHAR_CONV_EXCP	FALSE

 

应该是我的客户端环境中的字符集与之不匹配导致，修改本地环境：

打开注册表，找到

HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\KEY_OraDb10g_home1\NLS_LANG

修改其值

SIMPLIFIED CHINESE_CHINA.ZHS16GBK

为

SIMPLIFIED CHINESE_CHINA.AL32UTF8