使用expdp和impdp远程导入导出库

使用expdb ，impdp 导入导出库，首先在本地必须建立db_link才可导入导出，exp,imp 这两个命令无需建立db_link即可导入导出。

一.远程导出库的步骤：

1.在本地库的配置文件中加如配置：

orcl =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 远程主机IP)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = 远程服务名)
)
)

2.创建dblink

SQL>  create public database link netlink connect to 远程登录用户名 identified by 密码 using 'orcl';

Database link created.

SQL> select * from test.db@netlink;

ID NAME
---------- --------------------
1 ss
2 dd

3.创建导出临时目录：

SQL> create or replace directory dumpdir as '/oradata/dump';

Directory created.

4.授权用户，一般用system用户。

SQL> grant read,write on directory dumpdir to hr;

Grant succeeded.

SQL> conn hr/hr
Connected.
SQL> select * from test.db@netlink;

ID NAME
---------- --------------------
1 ss
2 dd
1 dddd

SQL> quit

5.在cmd中写expdp 导出语句:

[oracle@ORA11G-DG1 ~]$ expdp 本地登录库的用户名密码(system/orcl)  network_link=netlink directory=dumpdir dumpfile=test.dmp logfile=test.log schemas=test

(1):问题1：
Export: Release 11.2.0.4.0 - Production on Wed Dec 10 07:50:25 2014

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORA-31631: privileges are required
ORA-39109: Unprivileged users may not operate upon other users' schemas

问题解决办法
SQL*Plus: Release 11.2.0.4.0 Production on Wed Dec 10 07:52:01 2014

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> grant exp_full_database  to hr;

Grant succeeded.

SQL> quit

(2):问题2：
ORA-31631: privileges are required
ORA-39149: cannot link privileged user to non-privileged user

解决办法
连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> grant exp_full_database to test;

授权成功。

二.远程导入库：

1.步骤请参照导出库。

2.直接写导入语句：

Impdp  utest/utest@orcl  directory=DMPDIR  schemas=e01   network_link=sourcedatabase remap_schema=e01:e0311  job_name=impjob