如何在两个Oracle实例之间创建数据库链接 [英] How to create a DB link between two oracle instances

问题描述

如何在两个Oracle实例之间创建数据库链接.假设A和B是两个实例.我想从实例A访问实例B中的数据.

How to create a DB link between two Oracle instances. Let's say A and B are two instances. I want to access the data in instance B from the instance A.

推荐答案

如果您要从实例A访问实例B中的数据，那么这就是查询， 您可以编辑自己的凭据.

If you want to access the data in instance B from the instance A. Then this is the query, you can edit your respective credential.

CREATE DATABASE LINK dblink_passport
CONNECT TO xxusernamexx IDENTIFIED BY xxpasswordxx
USING
'(DESCRIPTION=
(ADDRESS=
(PROTOCOL=TCP)
(HOST=xxipaddrxx / xxhostxx )
(PORT=xxportxx))
(CONNECT_DATA=
(SID=xxsidxx)))';

执行此查询访问表后

SELECT * FROM tablename@dblink_passport;

您可以执行DML，DDL，DQL的任何操作

You can perform any operation DML, DDL, DQL

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