Discuss the important role played by users in the process of database design.
What will be an ideal response?
The users’ involvement throughout the database design phase is critical to providing the ‘correct’
system. In particular, the user should clarify any ambiguities in the specification that describes the
required system and also review continually the development of the database design. The process
of developing the database design is repeated until the user is prepared to ‘sign-off’ the design as
being a ‘true’ representation of the part of the enterprise that is being modeling.
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The value of variable y at loop exit could best be described as
Assume that all variables are of type int and that y and z are initialized to 0. ``` for (int i = 0; i < 100; ++i) { cin >> x; y += x; if ( x % 2 == 0 ) ++z; } ``` a. the sum of the values entered b. the number of values entered c. the largest value entered d. the average of the values entered
What is a class?
A. a set of characteristics and behaviors that define an object. B. a job description. C. A and B. D. none of the above.
What is the error message when you attempt to use a cell that has been deleted as a function argument?
A) #NPV? B) #NAME? C) #REF! D) #N/A
Options can be displayed from the ________ view
Fill in the blank(s) with correct word