Oracle 如何AL32UTF8转换成SIMPLIFIED CHINESE_CHINA.UTF8字符集(转)

原字集:

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               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              11.1.0.7.0

执行如下即可：

sql>shutdown immediate;
sql>startup mount;
sql>alter system enable restricted session;
sql>alter system set JOB_QUEUE_PROCESSES=0;
sql>alter system set  AQ_TM_PROCESSES=0;
sql>ALTER DATABASE OPEN;
sql>alter database character set INTERNAL_USE UTF8;