单项选择题
在关系数据库设计中,对关系进行规范化处理,使关系达到一定的范式,例如达到 3NF,属于的设计阶段是( )。
A. 需求分析阶段
B. 概念设计阶段
C. 逻辑设计阶段
D. 物理设计阶段
点击查看答案
<上一题
目录
下一题>
热门
试题
单项选择题
In a certain cache system, the modified cache block is written to main memory only when the block is replaced. All of following are used to describe this policy EXCEPT
A. store-in
B. write-back
C. copy-back
D. write-through
点击查看答案
单项选择题
Local bus can reduce the occupation time of CPU. For the EISA local bus, commonly the time can be reduced to
A.0.42
B.0.22
C.0.12
D.0.02
点击查看答案
相关试题
As an important phase in software ...
There are two common types in page...
In terms of MJFlynn''s taxonomy, t...
which descnption is NOT true
按照Flynn的分类法,属于SISD计算机的是(...