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  • IMPDP】同一数据库实例不同用户间数据迁移复制——NETWORK_LINK参数

    在网上经常看到网友使用dblink导数据报错,报错大致如下:

    $ impdp system/system network_link=DB_LINK remap_schema=A:B schemas=A

    Import: Release 11.2.0.3.0 - Production on Tue Aug 14 14:07:52 2012
    Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
    Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
    With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
    Data Mining and Real Application Testing options
    ORA-39001: invalid argument value
    ORA-39200: Link name "DB_LINK" is invalid.
    ORA-02019: connection description for remote database not found

    解决办法:

    只需要创建public database link就ok了,dblink用完后要尽快删掉,否则可能有安全隐患。

    核心步骤:

    一、创建dblink

    create public database link DB_LINK connect to system identified by oracle using 'network';

    二、impdp

    impdp system/oracle network_link=network remap_schema=A:B schemas=A

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  • 原文地址:https://www.cnblogs.com/weixun/p/3783772.html
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