这里要指出的是：network_link不支持远端导出分区表中的某一个分区，但可以导整个分区表。以下为测试过程：

创建分区表sales：

[oracle@ora10g ~]$ sqlplus ‘/as sysdba’

SQL> CREATE TABLE sales

(sale_date DATE NOT NULL)

PARTITION BY RANGE (sale_date)

(PARTITION sales2010_q1

VALUES LESS THAN (TO_DATE(’2010-04-01′,’YYYY-MM-DD’))

TABLESPACE sp1,

PARTITION sales2010_q2

VALUES LESS THAN (TO_DATE(’2010-07-01′,’YYYY-MM-DD’))

TABLESPACE sp2,

PARTITION sales2010_q3

VALUES LESS THAN (TO_DATE(’2010-10-01′,’YYYY-MM-DD’))

TABLESPACE sp3);

插入4条记录：

SQL> select count(*) from sales;

COUNT(*)

———-

4

SQL> select * from sales partition(sales2010_q1);

SALE_DATE

————

23-MAR-10

SQL> select * from sales partition(sales2010_q2);

SALE_DATE

————

23-JUN-10

22-JUN-10

SQL> select * from sales partition(sales2010_q3);

SALE_DATE

————

23-SEP-10

远端机器上创建 directory目录、赋权、创建dblink:

[oracle@node1 /]$ sqlplus ‘/as sysdba’

SQL> create directory dump_dir as ‘/backup’;

Directory created.

SQL> grant read,write on directory dump_dir to ochef;

Grant succeeded.

SQL> create database link test connect to ochef identified by oracle using ‘primary’;

Database link created.

SQL> select count(*) from ochef.sales@test;

COUNT(*)

———-

4

远程导出整个分区表：

[oracle@node1 ~]$ expdp ochef/oracle directory=dump_dir dumpfile=sales.dmp network_link=test tables=sales

Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 – Production

With the Partitioning, Real Application Clusters, OLAP, Data Mining

and Real Application Testing options

Starting “OCHEF”.”SYS_EXPORT_TABLE_01″:  ochef/******** directory=dump_dir dumpfile=sales.dmp network_link=test tables=sales

Estimate in progress using BLOCKS method…

Processing object type TABLE_EXPORT/TABLE/TABLE_DATA

Total estimation using BLOCKS method: 384 KB

Processing object type TABLE_EXPORT/TABLE/TABLE

. . exported “OCHEF”.”SALES”                             4.960 KB       4 rows

Master table “OCHEF”.”SYS_EXPORT_TABLE_01″ successfully loaded/unloaded

******************************************************************************

Dump file set for OCHEF.SYS_EXPORT_TABLE_01 is:

/backup/sales.dmp

Job “OCHEF”.”SYS_EXPORT_TABLE_01″ successfully completed at 11:12:43

远程导出分区表的某个分区：

[oracle@node1 ~]$ expdp ochef/oracle directory=dump_dir dumpfile=sales.dmp network_link=test tables=sales:sales2010_q2

ORA-39001: invalid argument value

ORA-39203: Partition selection is not supported over a network link.

本地导出分区表的某个分区：

[oracle@ora10g ~]$ expdp ochef/oracle directory=dump_dir dumpfile=sales.dmp tables=sales:sales2010_q2

Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 – Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

Starting “OCHEF”.”SYS_EXPORT_TABLE_01″:  ochef/******** directory=dump_dir dumpfile=sales.dmp tables=sales:sales2010_q2

Estimate in progress using BLOCKS method…

Processing object type TABLE_EXPORT/TABLE/TABLE_DATA

Total estimation using BLOCKS method: 128 KB

Processing object type TABLE_EXPORT/TABLE/TABLE

. . exported “OCHEF”.”SALES”:”SALES2010_Q2″              4.937 KB       2 rows

Master table “OCHEF”.”SYS_EXPORT_TABLE_01″ successfully loaded/unloaded

******************************************************************************

Dump file set for OCHEF.SYS_EXPORT_TABLE_01 is:

/backup/sales.dmp

Job “OCHEF”.”SYS_EXPORT_TABLE_01″ successfully completed at 11:07:07

关于远程expdp用户权限问题，请移步这里。

-The End-

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