***************************************************************** * 更改字符集步骤方法(WE8ISO8859P1 --> ZHS16GBK) * ***************************************************************** SQL> select userenv('language') from dual; USERENV('LANGUAGE') -------------------------------------------------------------------------------- AMERICAN_AMERICA.WE8MSWIN1252 SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down. SQL> startup mount ORACLE instance started. Total System Global Area 845348864 bytes Fixed Size 1339796 bytes Variable Size 499125868 bytes Database Buffers 339738624 bytes Redo Buffers 5144576 bytes Database mounted. SQL> alter session set sql_trace=true; Session altered. SQL> alter system enable restricted session ; System altered. SQL> alter system set job_queue_processes=0; System altered. SQL> alter system set aq_tm_processes=0; System altered. SQL> alter database open; Database altered. SQL> ALTER DATABASE CHARACTER SET INTERNAL_USE ZHS16GBK; Database altered. SQL> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down. SQL> startup ORACLE instance started. Total System Global Area 845348864 bytes Fixed Size 1339796 bytes Variable Size 499125868 bytes Database Buffers 339738624 bytes Redo Buffers 5144576 bytes Database mounted. Database opened. SQL> conn test/test Connected. SQL> select userenv('language') from dual; USERENV('LANGUAGE') ---------------------------------------------------- AMERICAN_AMERICA.ZHS16GBK SQL> select '你好' from dual; '你 ---- 你好