如果数据库只在中国地区使用,数据库字符集选择ZHS16GBK或者常用中文字符集,如果不确定,就推荐使用AL32UTF8
国家字符集就选择: AL16UTF16
字符集一旦设定,不允许修改,修改可能出现乱码问题。Default Language和Default Territory默认即可。
数据库字符集查看：
1、查看实例字符集环境 SQL> SELECT * FROM NLS_INSTANCE_PARAMETERS; PARAMETER VALUE ------------------------------------------------------------ -------------------------------------------------------------------------------- NLS_LANGUAGE SIMPLIFIED CHINESE NLS_TERRITORY CHINA NLS_SORT NLS_DATE_LANGUAGE NLS_DATE_FORMAT NLS_CURRENCY NLS_NUMERIC_CHARACTERS NLS_ISO_CURRENCY NLS_CALENDAR NLS_TIME_FORMAT NLS_TIMESTAMP_FORMAT NLS_TIME_TZ_FORMAT NLS_TIMESTAMP_TZ_FORMAT NLS_DUAL_CURRENCY NLS_COMP BINARY NLS_LENGTH_SEMANTICS BYTE NLS_NCHAR_CONV_EXCP FALSE 17 rows selected 2、查看数据库服务器字符集环境： SQL> SELECT * FROM NLS_DATABASE_PARAMETERS; PARAMETER VALUE ------------------------------ -------------------------------------------------------------------------------- NLS_LANGUAGE AMERICAN NLS_TERRITORY AMERICA NLS_CURRENCY $ NLS_ISO_CURRENCY AMERICA NLS_NUMERIC_CHARACTERS ., NLS_CHARACTERSET ZHS16GBK 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 20 rows selected 3、查看客户端字符集环境 SQL> SELECT * FROM V$NLS_PARAMETERS; PARAMETER VALUE ---------------------------------------------------------------- ---------------------------------------------------------------- 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 ZHS16GBK 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 19 rows selected 4、查看会话字符集环境 SQL> SELECT * FROM NLS_SESSION_PARAMETERS; PARAMETER VALUE ------------------------------------------------------------ -------------------------------------------------------------------------------- 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 17 rows selected