oracle_datapump类型外部表
将卸载的2个DMP文件拷贝到另外DB,放在原来相同的user_data_dir下,利用2生成的DDL语句建立外表即可。
1、卸载数据(可以并行)
create table dp_user_objects
organization external
(
type oralce_datapump
default directory user_data_dir
location ('user_objects1.dmp','user_objects2.dmp')
)
parallel 2
as select * from user_objects;
2、在源数据库上调用select dbms_metadata.get_ddl('TABLE','dp_user_objects') FROM DUAL;
3、将卸载的2个DMP文件拷贝到另外DB,,放在原来相同的user_data_dir下,利用2生成的DDL语句建立外表即可。

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