周末要做一个小型的数据迁移，确定使用expdp，impdp工具做迁移。
os版本： Red Hat Enterprise Linux Server release 6.6
数据库版本： oracle 11.2.0.4

1. 查看源库所有表空间和数据文件，确定所要迁移的用户数据所在的表空间。
select * from                                                                                                                                
(select tablespace_name,file_name from dba_data_files where tablespace_name not in ('SYSTEM','SYSAUX','USERS','UNDOTBS1','TEMP') order by 1 )
union all                                                                                                                                    
(select tablespace_name,file_name from dba_temp_files where tablespace_name not in ('TEMP')  )  ;

2. 创建目标表空间批量的SQL,创建表空间。
数据表空间的创建脚本：
select 'create tablespace '||a.tablespace_name||' datafile ''+DATA/xxxxx/datafile/'||b.tablespace_name||'01.dbf''  size 5g autoextend on;' from
(select tablespace_name from  dba_tablespaces where tablespace_name not in ('SYSTEM','SYSAUX','USERS','UNDOTBS1') and contents not in ('TEMPORARY')) a,                  
(select tablespace_name from  dba_tablespaces where tablespace_name not in ('SYSTEM','SYSAUX','USERS','UNDOTBS1') and contents not in ('TEMPORARY') ) b                   
where a.tablespace_name=b.tablespace_name                                                                                                                   
order by 1 ;

3. 在源端做数据导出。
expdp username/passwd directory=exp_dir  dumpfile=expdp_xxxxx_1129.dmp  log=/ulic/backup/expdp_xxxxx_1129.log schemas=xxxxx;

4. 将导出的dmp文件通过sftp工具down到目标端。
sftp oracle@10.x.x.x

5. 在目标端做数据导入。
impdp username/passwd directory=exp_dir  dumpfile=expdp_xxxxx_1129.dmp  log=/ulic/backup/expdp_xxxxx_1129.log schemas=xxxxx;

一篇很有用的文章
http://blog.itpub.net/21374452/viewspace-2129360/