Suppose, the Professor entity did not participate in the relationship WorksIn, but the arrow between them was still present. Would it make sense to merge Professor with WorksIn during translation into the relational model? What kind of problems can arise here? Are they serious problems?
What will be an ideal response?
The problem with such a merge is that there might be null values over the attributes of WorksIn. This is most likely not a serious problem in this example.
Computer Science & Information Technology
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An IPv4 address contains __________ bits.
a) eight b) 32 c) 64 d) 128
Computer Science & Information Technology
Specific parts of data that have been entered into a field can be isolated and extracted by using the:
A) Date functions. B) Len function. C) Text functions. D) IS functions.
Computer Science & Information Technology
A(n) ________ of the existing infrastructure is the first step in assessing risk
A) audit B) diagram C) comprehensive list D) tour
Computer Science & Information Technology
A feature that modifies text to include special effects, such as color, shadow, gradient, and 3-D appearance.
What will be an ideal response?
Computer Science & Information Technology