Why does the number of blocks for the table remain the sale after the shrink operation?
A.Because the table did not contain migrated or chained rows

B.Because the row IDs remain the same for all rows during the shrink operation

C.Because the progress of the shrink operation is not saved in the bitmap blocks of the table

D.Because the high-water mark (HWM) did not move due to the COMPACT option that is used in the shrink operation

答案解析:

COMPACT 
If you specify 
COMPACT
, then Oracle Database only defragments the segment space and compacts the table rows for subsequent release. The database
 does not readjust the high water mark and does not release the space immediately.
 You must issue another 
ALTER
 
TABLE
 ... 
SHRINK
 
SPACE
 statement later to complete the operation. This clause is useful if you want to accomplish the shrink operation in two shorter steps rather than one longer step. 

选D。

OCP-1Z0-053-V13.02-712新题的更多相关文章

  1. LeetCode 新题: Find Minimum in Rotated Sorted Array 解题报告-二分法模板解法

    Find Minimum in Rotated Sorted Array Question Solution Suppose a sorted array is rotated at some piv ...

  2. OCP考试062题库出现大量新题-19

    choose three Which three statements are true about Oracle Data Pump? A) Oracle Data Pump export and ...

  3. 【2019年OCP新题】OCP题库更新出现大量新题-10

    10.Which two statements are true about SQL*Loader Express Mode in an Oracle 12c database? A) It can ...

  4. OCP 12c 062题库大更新,出现大量新题-5

    5.One of your databases supports an OLTP workload. The default undo tablespace is fixed size with: 1 ...

  5. (2019)OCP 12c 062考试题库出现大量新题-4

    4.Which four are true about creating and running a remote database scheduler jobs? A) A credential i ...

  6. OCP 12c考试题,062题库出现大量新题-第20道

    choose three Your database is configured for ARCHIVELOG mode, and a daily full database backup is ta ...

  7. OCP 12c题库出现大量新题,062新题-第21题

    choose three Which three statements are true about Oracle checkpoint processing? A) Incremental chec ...

  8. OCP新题,2019题库出现大量新题,062-第22题

    choose two Your database is running in ARCHIVELOG mode. You want to take a consistent whole database ...

  9. OCP考试062题库出现大量新题-18

    choose two Examine this command executed on a client that is remote from the database server. SQL> ...

  10. 【062有新题】OCP 12c 062出现大量之前没有的新考题-16

    choose one Which users are created and can be used for database and host management of your DBaaS da ...

随机推荐

  1. karma note

    karma 简介 karma不是一个测试框架,仅仅是启动了一个httpServer karma仅仅是一个跑测试的平台(runner), 我们可以使用各种测试框架, 如: Jasmine Mocha Q ...

  2. pyqt中使用matplotlib绘制动态曲线 – pythonic

    一.项目背景: 看了matplotlib for python developers这本书,基本掌握了在pyqt中显示曲线的做法,于是自己写一个. 二.需求描述: 1)X轴显示时间点,显示长度为1分钟 ...

  3. tomcat 7 无法打开管理页面

    在配置文件tomcat-users.xml中添加如下内容即可. <role rolename="admin"/> <role rolename="man ...

  4. ios7高级

    1.实现控制器和视图. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1     ...

  5. 未能加载文件或程序集“**, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null”或它的某一个依赖项。试图加载格式不正确的程序。

    未能加载文件或程序集“Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null”或它的某一个依赖项.试图加载格式不正确的程序. 原来, ...

  6. UIImage缩放

    +(UIImage *)scaleImage: (UIImage *)image scaleFactor:(float)scaleFloat { CGSize size = CGSizeMake(im ...

  7. ActiveMQ下载及安装

    1.下载ActiveMQ 官方网站:http://activemq.apache.org/ 根据需要下载不同的版本.我下载的是5.13.3-win64的版本 2.运行ActiveMQ服务 2.1解压缩 ...

  8. LeetCode Coins in a Line

    There are n coins in a line. Two players take turns to take one or two coins from right side until t ...

  9. JS学习之闭包的理解

    一.变量的作用域 要理解闭包,首先必须理解Javascript特殊的变量作用域.变量的作用域无非就是两种:全局变量和局部变量.Javascript语言的特殊之处,就在于函数内部可以直接读取全局变量.另 ...

  10. 8.PHP 教程_PHP字符串

    字符串变量用于存储并处理文本. PHP中的字符串变量 字符串变量用于包含有字符的值. 在创建字符串之后,我们就可以对它进行操作了.您可以直接在函数中使用字符串,或者把它存储在变量中. 在下面的实例中, ...