试题详情
- 多项选择题Which two statements correctly describe the relation between a data file and the logical databasestructures（）
A、An extent cannot spread across data files.
B、A segment cannot spread across data files.
C、A data file can belong to only one tablespace.
D、A data file can have only one segment created in it.
E、A data block can spread across multiple data files as it can consist of multiple operating system （OS） blocks.
- A,C
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