Which two statements correctly describe the relation between a data file and the logical database structures()
- 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
正确答案:A,C
答案解析:有
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