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Oracle DBCA命令克隆实例

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Jun 07, 2016 pm 05:22 PM

利用dbca克隆实例可以不用像数据泵还原那样繁琐，建表空间，建用户，授权，拷贝然后还原，跟rman类似，但在效率上跟rman还是有差

利用dbca克隆实例可以不用像数据泵还原那样繁琐，建表空间，，建用户，授权，拷贝然后还原，跟rman类似，但在效率上跟rman还是有差距的

在我们创建实例的时候可以保存为模板，其实也可以直接用DBCA命令来创建我们的实例模板，并且利用这个功能进行实例的复制。只是这个功能很少被关注

Oracle DBCA命令克隆实例

这里我们选择ManageTemplate：

Oracle DBCA命令克隆实例

注意创建模板的三种类型，官网也有相关的说明：

Installing Oracle Database and Creating aDatabase

#ADMQS023

（1）From an existing template

Using anexisting template, you can create a new template based on the predefinedtemplate settings. You can add or change any template settings such asinitialization parameters, storage parameters, or whether to use customscripts.

--根据已经存在的模板来创建新的模板，在此基础之上可以修改旧模板的参数。

（2）From an existing database(structure only)

You can create anew template that contains structural information from an existing database,including database options, tablespaces, data files, and initializationparameters. User-defined schemas and their data will not be part ofthe created template. The source database can be either local or remote. Selectthis option when you want the new database to be structurally similar to thesource database, but not contain the same data.

--根据已经存在的数据库实例来创建新的模板，这种只包含structural 的信息，如database options，tablespaces，datafiles 和initialization parameters。用户定义的schemas 和data 不会被包含在模版中。因此这种模板只包含基本的架构信息。

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