kaylacrider2186 kaylacrider2186

19-12-2022
Computers and Technology

Answered

Suppose by applying the BCNF algorithm we decompose the original relation R into two new relations S and T.
Let the lower-case letter denote the set of attributes in the relation. For instance, if R has the schema R(a, b ,c), then r = {a, b, c}.
Question: Which of the following best describes the relationship between r, s, and t?
A. r - s = s - t
B. r = s - (s - t)
C. r = s + (t - s)
D. r - t = r - s

Answer :

Other Questions

a student is developing an algorithm to determine the name of the photographer who took the oldest photograph in the collection. photographs whose photographer

Complete the function FindChars() that takes one string parameter and one character parameter. The function returns the number of characters in the string that

9. In multilevel feedback scheduling algorithm ____________ a) a process can move to a different classified ready queue b) classification of ready queue is perm

You can use the ________ method to determine whether a specific element exists as a KeyValuePair in a dictionary. a. ContainsValue b. ElementAt c. Contains d. C

The purpose of this assignment is for you to demonstrate the following learning outcomes and for me to assess your achievement of them. Students should: have an

scenario: you are working for the networking group of howard community college. the college is renting new space in the new merriweather office building in colu

Consider a disk queue holding requests to the following cylinders in the listed order: 116, 22, 3, 11, 75, 185, 100, 87. Assume the disk head is at cylinder 88

Using an index for attributes referenced in ORDER BY and GROUP BY clauses has no significant impact upon database performance. True or False

Recursion Implement a recursive program that takes in a number and finds the square of that number through addition. For example, if the user inputed a 3 , you

T/F When we specify two (or more) tables in the FROM clause the result of the query will be computed based the Cartesian product between the two (or more) table