单选题When performing an incomplete recover of the whole database， which data files must you restore？ （）AOnly the damaged or lost data files.BAll of the data files of the database.COnly the data files belonging to the SYSTEM tablespace.DThe data files belonging to the SYSTEM tablespace and the damaged or lost data files.
单选题
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.
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