Show that the decomposition in exercise is not a dependency-preserving decomposition.
Question:
Show that the decomposition in exercise is not a dependency-preserving decomposition.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 78% (14 reviews)
The dependency B D is not preserved F1 the restriction of F to A B C is A ABC A AB A AC A BC A ...View the full answer
Answered By
Fahmin Arakkal
Tutoring and Contributing expert question and answers to teachers and students.
Primarily oversees the Heat and Mass Transfer contents presented on websites and blogs.
Responsible for Creating, Editing, Updating all contents related Chemical Engineering in
latex language
4.40+
8+ Reviews
22+ Question Solved
Related Book For
Question Posted:
Students also viewed these Computer Sciences questions
-
In Exercise 4.22 women did not show much difference between Optimists and Pessimists. The first 17 scores in the Optimist group are for men and the first 13 scores in the Pessimist group are for men....
-
The dependency diagram in Figure indicates that authors are paid royalties for each book that they write for a publisher. The amount of the royalty can vary by author, by book, and by edition of the...
-
In this exercise we will show that a hypothesis test involving a binomial experiment is equivalent to a hypothesis test for a proportion (Section 7-5). Assume that a particular experiment has only...
-
Consider the two tables shown in Figure 6.37. The TerID column in the SALES_REP relation is a foreign key referring to the primary key column TerID in the TERRITORY relation. Figure 6.37 Relations...
-
Use the information from the Fun Time Cruiseline Data Set to compute the following: a. What is the contribution margin per passenger? b. What is the contribution margin ratio? c. Use the unit...
-
Thirty-six percent of all Americans drink bottled water more than once a week (Natural Resources Defense Council, December 4, 2015). Suppose you have been hired by the Natural Resources Defense...
-
Identify the mode for each of the following sets of data: a. 7, 3, 7, 1, 7 b. 3, 1, 1, 2, 3, 3 c. 8, 22, 8, 10, 9, 8, 12, 7, 8 d. 5, 3, 6, 4, 5, 3, 1, 5, 2, 5, 6, 5 e. 11, 9, 13, 6, 14, 12, 7, 12,...
-
Carl, a salesman for Smith, comes to Bensons home and sells him a complete set of gourmet cooking utensils that are worth approximately $300. Benson, an eighty-year-old man living alone in a one-room...
-
ExplainCapital Structure and give an example.Define Capital Structure and give an example.
-
The frame supports a centrally applied distributed load of 1.8 kip>ft. Determine the state of stress at points A and B on member CD and indicate the results on a volume element located at each of...
-
Let R1, R2, Rn be a decomposition of schema U. Let u (U) be a relation, and let r i = IIRI (u). Show that u r1 1 r2 1 1 rn
-
Show that it is possible to ensure that a dependency-preserving decomposition into 3NF is a loss less-join decomposition by guaranteeing that at least one schema contains a candidate key for the...
-
Complete each expression. (a) A + 1 = (b) A.A = (c) B-B = (d) C + C = (e) x 0 = (f) D.1 = (g) D + 0 = (h) C + C = (i) G + GF (j) y + wy =
-
ACCOUNTS RECEIVABLE 20XX $500,000 DATE ACCOUNT Bad Debts Expense Allowance for Bad Debts REF DEBIT CREDIT $35,000 $35,000 Using the information above, the percent of receivables is
-
A company's total cost increases from $ 5 0 0 to $ 7 0 0 when it produces 1 0 0 units of a product and then to $ 9 0 0 when it produces 1 5 0 units. What is the marginal cost? Question 1 1 options: $...
-
LONG TERM ASSET ASSET: FOOD TRUCK ASSET COST $ 3 5 , 0 0 0 INTEREST ON TRUCK LOAN $ 4 5 0 ACCUMULATED DEPRECIATION $ 6 , 6 0 0 PREPAID INSURANCE $ 2 , 3 0 0 BOOK VALUE $ Based on the information...
-
Resilient Ltd has incurred development costs as follows during the year ended 3 1 December 2 0 X 3 : 3 months ended 3 1 March $ 1 2 0 , 0 0 0 3 months ended 3 0 June $ 2 4 0 , 0 0 0 3 months ended 3...
-
What are the main factors that contribute to employee turnover, and how can organizations reduce it? Explain
-
Why are critical thinking skills increasingly important in todays workplace?
-
Prairie Outfitters, Inc., a retailer, accepts paymnent through credit cards. During August, credit card sales amounted to $12,000. The processor charges a 3% fee. Assuming that the credit card...
-
Convert 1.8 quarts to cubic centimeters. GIVEN: 1.8 qt FIND: cm CONCEPTUAL PLAN qt 1L 1.057 qt L 1 mL 10- L RELATIONSHIPS USED 1.057 qt = 1 L mL 1 mL cm 1 mL = 10-L 1 mL = 1 cm (These conversion...
-
Using the university schema, use SQL to do the following: For each student who has retaken a course at least twice (i.e., the student has taken the course at least three times), show the course ID...
-
Using the university schema, write an SQL query to find the names and IDs of those instructors who teach every course taught in his or her department. Order result by name.
-
Using the university schema, write an SQL query to find the name and ID of each History student whose name begins with the letter D and who has not taken at least five Music courses.
-
Jamie Lee is attracted to the low monthly payment advertised for a vehicle lease. She may well be able to afford a more expensive car than she originally thought. Jamie Lee really needs to think this...
-
Explain virtual hosting and how to use either name-based or IP-based virtual hosting.?
-
Discuss the role of literary allusion in satire as a means of subverting conventions and critiquing societal norms.
Study smarter with the SolutionInn App