单选题You want to create the Recovery Manager (RMAN) Virtual Private Catalog (VPC) to maintain a separation of responsibilities along with a consolidation of RMAN repository. Which condition must be met before you create the VPC?（）A A base catalog existsB Th
题目
单选题
You want to create the Recovery Manager (RMAN) Virtual Private Catalog (VPC) to maintain a separation of responsibilities along with a consolidation of RMAN repository. Which condition must be met before you create the VPC?（）
A
A base catalog exists
B
The recovery catalog is empty
C
The base recovery catalog must be dropped
D
A target database is registered in the recovery catalog