After being hired as a database administrator, you find that there is only one database that is functional and that is being accessed by the applications. You want to create a replica of the database, to be used for testing purposes. What is the best method to create the replica? A) create a database by using CREATE DATABASE .. command and manually copy the data B) use Database Configuration Assistant (DBCA) to create a template from the existing database to contain the database structure C) use DBCA to create a template from the existing database to contain the database structure and then manually copy the data using Oracle Data Pump D) use DBCA to create a template from the existing database to contain the database structure with data files and then use the same template to create the database in the new location
Answer: D 用DBCA创建一个模板,然后使用该模板创建数据库
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