Oracle OCP 082知识
剩余时间：
第 21 题 (多选题)：
Which two statements are true regarding Oracle database space management within blocks managed by Automatic Segment Space Management (ASSM).
A. Update operations always relocate rows into blocks with free space appropriate to the length of the row being updated.
B. PCTFREE defaults to 10% for all blocks in all segments for all compression methods.
C. The first block with enough free space to accommodate a row being inserted will always be used for that row.
D. ASSM assigns blocks to one of four fullness categories based on what percentage of the block is allocated for rows.
E. Insert operations always insert new rows into blocks with free space appropriate to the length of the row being inserted
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正确答案：
B,E
解析：
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