试题详情
- 多项选择题Which three statements are true regarding the logical structure of the Oracle database？（）
A、Each segment contains one or more extents.
B、Multiple tablespaces can share single data file.
C、A data block is the smallest unit of I/O for data files.
D、It is possible to have tablespaces of different block sizes in a database.
E、Each data block in the database always corresponds to one OS block.
- A,C,D
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