oracle解决PL/SQL乱码
PL/SQL中文为乱码，原因是服务器端和客户端编码不一致，解决方法：1、检查服务器编码：
SQL> select * from v$nls_parameters;
PARAMETER VALUE
---------------------------------------------------------------- ----------------------------------------------------------------
NLS_LANGUAGE SIMPLIFIED CHINESE
NLS_TERRITORY CHINA
NLS_CURRENCY RMB
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 RMB
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_COMP BINARY
NLS_LENGTH_SEMANTICS BYTE
NLS_NCHAR_CONV_EXCP FALSE
2) 得到服务器端编码为：NLS_LANGUAGE= SIMPLIFIED CHINESE；
3) 进入注册表：HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\HOME0；
4) 修改NLS_LANG = SIMPLIFIEDCHINESE；
OK。
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