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oracle跨库访问


创建一格database link 名称为 link_scott,连接scott用户,scott用户密码为tiger,
连接的ip是192.168.1.2

-- Create database link 
create database link link_scott
connect to scott
identified by tiger
using '(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.2)(PORT = 1521))
(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = orcl))
)';


 
 创建之后,就可以跨库访问scott用户下的表了
 比如scott用户下有 dmp这个表,查询dmp表下所有数据

select * from dmp@link_scott

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