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【单选题】
你是一个真空吸尘器销售公司的数据库开发者。公司已有一个名为Sales的数据库,包含有VacuumSales表和Employee表。销售信息存储在VacuumSales表中,雇员信息存储在employee表中,在Employee表中有一位列名为IsActive.这个列表明是否有雇员被当前雇用。Employee表也有一个列为EmployeeID是毎个雇员的唯一标示符。所有的销售输入到VacuumSales表必须包含当前被雇用的雇员的employeeID。你应该如何来实现这个要求?()
A.
用微软分布式事务处理Employee表在分布式处理中如果EmployeeID没有执行则将整个事务。
B.
在VacuumSales表的EmployeeID列中添加一个CHECK约束。
C.
在VacuumSales表的EmployeeID列中添加一个外键约束参照Employee表中的EmployeeID列。
D.
在VacuumSales表中添加一个FORINSERT触发器。在触发器中,在inserted表的基础上连接Employee表和EmployeeID表,测试IsActive列。
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参考答案:
举一反三
【判断题】A primary use case describes the standard flow of events in the system.
A.
正确
B.
错误
【简答题】A. Choose the proper animal words to complete the following sentences. Refer to dictionaries when necessary. Without my glasses, I am as blind as a ................................ (mouse / bat)
【判断题】A business requirements use case captures the interactions with the user in a manner that needs technology and implementation details.
A.
正确
B.
错误
【单选题】1512a-3.choose the proper response to the question you hear
A.
How are you?
B.
Yes, I do.
C.
Here it is.
D.
My pleasure.
【单选题】Which of the following is not a step in the process of requirements use case modeling?
A.
identify business actors
B.
identify business use cases
C.
construct use case model diagram
D.
document business requirements use case narratives
E.
none of these – they are all steps of the process
【单选题】In a use case model, which one of the following is a relationship that always relates two use cases?
A.
Association
B.
Aggregation
C.
Extend
D.
All of the above
【单选题】The medical worker got the cheapest bid. 2.Suzanne called the medical worker. 3.The welfare office called and approved the repair. 4.The medical worker alerted the welfare office . 5.I called Suzanne...
A.
5 -2 -4 -1 -3
B.
5 -3 -2 -1 -4
C.
5- 4- 1- 2- 3
D.
5- 2- 1 -4 -3
【单选题】In a use case, the ( ) refers a person, another software system, or a hardware device that interacts with the system to achieve a useful goal.
A.
normal course
B.
actress
C.
actor
D.
priority
【单选题】Which of the following is NOT a factor used in the use case ranking and priority matrix
A.
significant impact on the architectural design
B.
estimated time to implement
C.
involves risky technology
D.
potential to decrease costs
E.
contains significant functionality
【简答题】Read the conversation. Choose the proper sentences from A to E to complete the conversation. A. l ocated B. take us to visit C. my first trip D. r epresent E. and so on Guide: Good morning! My name is...
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