【2019】OCP考试062题库新出现的考题-第41题
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我要咨询2018年的时候,OCP 11g考试题库大更新,052 053出现了很多新题,
2019年,11g即将停考的前期,Oracle又出现了一次大变动,12c出现了很多新题,比如062 063题库大更新
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41题、choose one
Examine the details of the uncompressed, non-partitioned heap table CITIES.
Name Null? Type
CITYID NOT NULL NUMBER (4)
CITY_NAME VARCHAR2 (50)
Examine the command:
SQL>ALTER TABLE cities SHRINK SPACE COMPACT;
What must you do before executing it?
A) Ensure there are no pending transactions on the table.
B) Disable all indexes on the table .
C) Ensure free space that is approximately equal to the space used by the table should be available.
D) Enable row movement is enabled.
Answer:D
(解析:想要shrik表的空间,因为要涉及到行的移动,所以要先把行移动功能打开。)
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