用expdp远程导出dmp文件并impbp导入数据库

1．需求

远程导出数据库dmp文件，然后用impbp将dmp文件导入数据库

2．步骤

1、本地数据库用户（sys）创建network_link:

2、本地数据库用户（sys）创建目录并针对导出用户（system）对该目录授予读写权利

3、用expdp语句远程导出数据库dmp文件到本地

3．实例

（1）基本信息

本地数据库信息

用户： localDBuername/localDBpasswd

表空间名：localDBspacename

远程数据库信息

TNS：

TNSORCL =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 远程数据库服务器IP)(PORT = 1521))

)

(CONNECT_DATA =

(SERVICE_NAME = ORCL)

)

)

用户：remoteDBUername/remoteDBpasswd

表空间名：remoteDBspacename

（2）导出dmp文件

create public database link netlinkname connect to remoteDBUername identified by remoteDBpasswd using ‘TNSORCL’

create or replace directory dumpdir as ‘D:\localFilename\’

grant read,write on directory dumpdir to localDBuername

expdp localDBuername/localDBpasswd network_link = netlinkname directory = dumpdir dumpfile = remoteDB.dmp logfile = expdp.log schemas = remoteDBUername

（3）将dmp文件导入到数据库

impdp localDBuername/localDBpasswd directory = dumpdir dumpfile = remoteDB.dmp logfile = impremoteDB.log version = 11.2.0.1.0 remap_tablespace=localDBspacename:remoteDBspacename remap_schema=localDBuername:remoteDBUername