For a relation R with schema R (A, B, C, D), let us assume that A is the primary key. And, R consists of the set of functional dependencies F = {A → B, A → C, AB → C, C → D}.
Which of the following would violate the 3NF rule? Why?
(a) AB → C
(b) C → D
(c) A → BCD
(d) None of the above

Solved

Show answers

Ответ:

shay8850

22.04.2021

Mathematics

$\huge\boxed{7\times\dfrac{1}{6}=\dfrac{7}{6}}$

Step-by-step explanation:

$7\times\dfrac{1}{6}=\dfrac{7}{1}\times\dfrac{1}{6}=\dfrac{7\times1}{1\times6}=\dfrac{7}{6}=\dfrac{6+1}{6}=1\dfrac{1}{6}$

0,0(0 оценок)

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.

Ask your question

More tips

A Animals and plants 5 Tips for Taking Care of Yews to Keep Them Green and Beautiful...
H Health and Medicine How to Help Men Gain Weight?...
A Auto and Moto Discovering the Leader: What is the Most Expensive Car in the World?...
H Health and Medicine Hangover: How to Get Rid of It Quickly?...
S Style and Beauty How to Choose the Right Fur Coat and Avoid Regrets?...
C Computers and Internet How to Create a Folder on Your iPhone?...
G Goods and services How to sew a ribbon: Tips for beginners...
F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
C Computers and Internet Which Phone is Best for Internet Surfing?...
F Food and Cooking Everything You Need to Know About Pasta...

Answers on questions: Mathematics

M Mathematics What is a common factor for the two fractional terms 5/8x and 11/8xy ?The terms can be written as (5)(1/8)(x) and (11)(1/8)(x)(y) .(1) 5(2) 1/8x(3) 5/8(4) y...
M Mathematics What is the solution of this system of equations? x+5y=10 3x+y=16 a) x=0 y=2 b)x=5 y=1 c) x=3 y=7 d) x=-10 y=4...
B Biology Describe primates. What specific physical features they have?...
B Biology A radioactive element has a half-life of 2,000 years. If a sample of this element begins with a mass of 100 grams, how long would you have to waitfor the mass to decrease...
E English Which of the following gives a stumbling feeling to the poem? the use of rhyme the imagery the rhythm of the line breaks the use of alliteration...
B Business All of the following are alternative forms of institutional advertisements EXCEPT: A. competitive B. public service C. reminder D. pioneering E. advocacy...

Ask an AI advisor a question

I want advice

For a relation R with schema R (A, B, C, D), let us assume that A is the primary key. And, R consists of the set of functional dependencies F = {A → B, A → C, AB → C, C → D}. Which of the following would violate the 3NF rule? Why? (a) AB → C (b) C → D (c) A → BCD (d) None of the above