When performing an incomplete recover of the whole database， which data files must you restore？ （）
- A、Only the damaged or lost data files.
- B、All of the data files of the database.
- C、Only the data files belonging to the SYSTEM tablespace.
- D、The data files belonging to the SYSTEM tablespace and the damaged or lost data files.
正确答案:B
答案解析:有
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