sqlplus system/123@ORCL; 查看oracle字符集： select * from nls_database_parameters where parameter ='NLS_CHARACTERSET'; C、server端字符集修改 ***************************************************************** * 更改字符集步骤方法(WE8ISO8859P1 --> ZHS16GBK) * ***************************************************************** SQL> 将数据库启动到RESTRICTED模式下做字符集更改： SQL> conn /as sysdba Connected. SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup mount ORACLE instance started. Total System Global Area 236000356 bytes Fixed Size 451684 bytes Variable Size 201326592 bytes Database Buffers 33554432 bytes Redo Buffers 667648 bytes Database mounted. 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 ZHS16GBK; ALTER DATABASE CHARACTER SET ZHS16GBK * ERROR at line 1: ORA-12712: new character set must be a superset of old character set 提示我们的字符集：新字符集必须为旧字符集的超集，这时我们可以跳过超集的检查做更改： SQL> ALTER DATABASE character set INTERNAL_USE ZHS16GBK; Database altered. SQL> select * from v$nls_parameters; 略 19 rows selected. 重启检查是否更改完成： SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup ORACLE instance started. Total System Global Area 236000356 bytes Fixed Size 451684 bytes Variable Size 201326592 bytes Database Buffers 33554432 bytes Redo Buffers 667648 bytes Database mounted. Database opened. SQL> select * from v$nls_parameters; 略 19 rows selected. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ D、client端字符集修改 在 /home/oracle与 /root用户目录下的.bash_profile中 添加或修改 export NLS_LANG="AMERICAN_AMERICA.UTF8" 语句 关闭当前ssh窗口。 drop tablespace TS_DATA including contents and datafiles; create tablespace TS_DATA logging datafile 'D: ablespaceTS_DATA.dbf' size 50m autoextend on next 50m maxsize 20480m extent management local; drop user user1 cascade; create user user1 identified by 123456 default tablespace TS_DATA; grant connect,resource to user1; grant dba to user1; spool off; create directory dpDir as 'd:dump'; grant read,write on directory dpDir to user1; DOS直接执行： expdp user1/123456 directory=dpDir dumpfile=user120170505.dmp logfile=user120170505.log PARALLEL=4; 拷贝数据库文件和日志文件到这个目录： D:app hinkpadadminorcldpdump 后执行以下命令： impdp user1/123456@orcl file=USER120170505.DMP log=user120170505.log