大家帮下忙看看这两道题是不是考的一个概念!

[复制链接]
查看11 | 回复3 | 2010-3-1 11:06:22 | 显示全部楼层 |阅读模式
103. You want to create a tablespace with the following specifications:
1. The tablespace extends automatically.
2. Used and free extents should be managed by bitmaps.
3. Default PCTUSED attribute is set to 60.
4. All the extents would be of size 1 MB.
Which three options would you choose to create the tablespace? (Choose three.)
A. tablespace with AUTOEXTEND enabled
B. tablespace with dictionary-managed extents
C. tablespace with a uniform extent allocation of 1 MB
D. tablespace with segment space management as manual
E. tablespace with segment space management as automatic

104. You are creating a locally managed tablespace to meet the following requirements:
All the extents should be of the same size.
The data should be spread across two data files.
A bitmap should be used to record the free space within the allocated extents.
Which three options would you choose? (Choose three.)
A. set PCTFREE and PCTUSED to 50
B. specify extent allocation as Uniform
C. specify extent allocation as Automatic
D. create the tablespace as bigfile tablespace
E. create the tablespace as smallfile tablespace
F. set segment space management to Automatic
G. use the RESIZE clause while creating the tablespace
Answer: ACD
Answer: BEF
我对tablespace with segment space management as manual和set segment space management to Automatic有疑问!请大家帮着讲下!
回复

使用道具 举报

千问 | 2010-3-1 11:06:22 | 显示全部楼层
http://www.itpub.net/viewthread. ... hlight=%2Bwarehouse
回复

使用道具 举报

千问 | 2010-3-1 11:06:22 | 显示全部楼层
感觉题目有问题。
segmnet space management auto 是通过bitmap管理block,而非管理extent
回复

使用道具 举报

千问 | 2010-3-1 11:06:22 | 显示全部楼层
2楼回答问题不应该让问者自己看文件去,要是这样谁问,回去看书去好了!
再说这题我作这糊涂!概念不清!
有没有不糊弄的朋友讲讲
回复

使用道具 举报

您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

主题

0

回帖

4882万

积分

论坛元老

Rank: 8Rank: 8

积分
48824836
热门排行