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Oracle 用dblink 跨库导数据

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Jun 07, 2016 pm 05:03 PM

一般都会用imp exp 备份和导入数据库但是有些时候需要比较灵活的从两个数据库之间取数据我这里用到的是oralc的dblink方式。首

Oracle 用dblink 跨库导数据

[日期：2011-08-02] 来源：Linux社区作者：zhouxingfu [字体：]

一般都会用imp exp 备份和导入数据库但是有些时候需要比较灵活的从两个数据库之间取数据我这里用到的是oralc的dblink方式。

首先监听器tnsnames.ora这个文件能连接到远程要创建dblink的数据库。

-- 创建dblink MANAGER为远程数据库的用户名 password 为远程数据库的密码， orcl为监听器连好的链接名称

这样就可以连接到 orcl数据库灵活的取每一张表的数据了

--两个数据库都存在 tb_demo表这是本表插入

--查询数据 sql和本地一样了只是后面加个@DDD.REGRESS.RDBMS.DEV.US.ORACLE.COM 就等于是dblink连好的远程数据库了

linux

Oracle 数据大小超出此类型的最大值：2736

Oracle 10g 建表空间授权 ,自动备份，恢复

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