(A) A field that uniquely identifies each record.The requirement that no record may have a null primary key and that entries for primary keys be unique is called the
(A) Rule of Referential Integrity.
(B) Rule of Primary Keys.
(C) Rule of Entity Integrity.
(D) Rule of Null Values.
(C) Rule of Entity Integrity.
Computer Science & Information Technology
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Which of the following is the number of 7-inch high servers that can be installed in a 42U rack?
A. 4 B. 5 C. 10 D. 12
Computer Science & Information Technology
What type of iteration would be appropriate for calculating the sum of the first 100 positive integers? What type would be appropriate for calculating the sum of an arbitrary number of positive integers? Briefly describe how each of these tasks could be performed.
What will be an ideal response?
Computer Science & Information Technology