数据迁移案例

/*
    --目标数据库
*/
--创建表空间
create tablespace action_eims_tbs 
datafile ‘/u01/app/oracle/oradata/ORCL/action_eims_tbs01.dbf‘
size 200M
autoextend on 
next 200M
maxsize 2048M
;

--创建用户
create user ARCER identified by ARCER DEFAULT TABLESPACE  action_eims_tbs;

grant dba,connect,resource to ARCER;



--查看目录对象
set linesize 200
col OWNER for a15
col DIRECTORY_NAME for a30
col DIRECTORY_PATH for a80
select * from dba_directories;


--创建目录对象
create directory expdp_dir as ‘/home/oracle/workstation/dump_dir‘;

--授权目录对象
grant read,write on directory expdp_dir to ARCER;


--查看用户对象信息
set linesize 200
col SEGMENT_NAME for a30
col SEGMENT_TYPE for a30
col TABLESPACE_NAME for a30

select segment_name,segment_type,tablespace_name from user_segments;


/*
    --源数据库
*/

--导出数据
expdp arcer/arcer directory=dmp_dir dumpfile=arcer_20140910.dmp logfile=arcer_20140910.log 




/*
    --目标数据库
*/
--导入数据
impdp ARCER/ARCER dumpfile=20140626_arcer.dmp directory=EXPDP_DIR remap_schema=arcer:ARCER remap_tablespace=users:action_eims_tbs