You want to create an RMAN recovery catalog in the RC01 database to help you manage the databases named DB01 and DB02. You need to create a recovery catalog owner in which of your databases？（）
- A、RCO1 only.
- B、DB01 only.
- C、DB02 only.
- D、DB01 and DB02 only.
- E、DB01，DB02，and RC01.
正确答案:A
答案解析:有
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