Oracle OCP 082知识
剩余时间：
第 7 题 (多选题)：
Which two statements are true concerning logical and physical database structures.
A. A segment's blocks can be of different sizes.
B. A segment might have only one extent.
C. All tablespaces may have one or more data files .
D. Segments can span multiple tablespaces.
E. A segment can span multiple data files in some tablespaces
显示答案
正确答案：
B,E
解析：
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