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sql代码 select * from v$nls_parameters
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sql代码 NLS_CHARACTERSET SELECT 'AMERICAN_AMERICA.' || PROPERTY_VALUE
FROM DATABASE_PROPERTIES
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NLS_CHARACTERSET = AL32UTF8 NLS_LANG = AMERICAN_AMERICA.AL32UTF8 |
设置环境变量 重启PLSQL
NLS_LANG=AMERICAN_AMERICA.AL32UTF8
原因:
客户端与服务器端编码不一致
了解下NLS_LANG的知识
NLS_LANG 参数组成 NLS_LANG=<Language>_<Territory>.<Clients Characterset>
查看Oracle服务端编码:select * from sys.nls_database_parameters;
从下面服务端 编码我们可以得到: NLS_LANG = AMERICAN_AMERICA.AL32UTF8
查看oracle服务端编码:select * from sys.nls_database_parameters;
NLS_LANGUAGE AMERICAN NLS_TERRITORY AMERICA NLS_CURRENCY $ NLS_ISO_CURRENCY AMERICA NLS_NUMERIC_CHARACTERS ., NLS_CHARACTERSET AL32UTF8 NLS_CALENDAR GREGORIAN NLS_DATE_FORMAT DD-MON-RR NLS_DATE_LANGUAGE AMERICAN 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_COMP BINARY NLS_LENGTH_SEMANTICS BYTE NLS_NCHAR_CONV_EXCP FALSE NLS_NCHAR_CHARACTERSET AL16UTF16 NLS_RDBMS_VERSION 11.2.0.1.0
查看client编码 :select * from sys.nls_session_parameters; 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_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_COMP BINARY NLS_LENGTH_SEMANTICS BYTE NLS_NCHAR_CONV_EXCP FALSE
明显客户端的编码和服务器端 的不一致!!!!解决办法:
设置环境变量 重启PLSQL
NLS_LANG=AMERICAN_AMERICA.AL32UTF8
此方法也适合用exp imp !以免中文有乱码出现!或部分数据乱码!
WINNT> set NLS_LANG=AMERICAN_AMERICA.AL32UTF8Linux> export NLS_LANG=AMERICAN_AMERICA.AL32UTF8
查看 NLS_LANG 的方法 Windows使用:echo %NLS_LANG%
C:\Users\Administrator>echo %NLS_LANG% AMERICAN_AMERICA.AL32UTF8
修改db编码的办法:(在oracle 11g上通过测试) --风险操作....最好不要用!!!!!!!! SQL> conn system as sysdba; SQL> shutdown immediate; SQL> startup mount; SQL> alter system enable restricted session; SQL> alter system set job_queue_processes=0; SQL> alter database open; SQL> alter database character set internal_use AL32UTF8; SQL> shutdown immediate; SQL> startup
--转自冰雪飞燕