Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 24 Oct 2017 My Price 4.00

relation REFRIG

Consider the relation REFRIG(Model#, Year, Price, Manu plant, Color), which is abbreviated as REFRIG(M, Y, P, MP, C), and the following set F of functional dependencies: F = {M → MP, {M, Y} → P, MP → C}

a. Evaluate each of the following as a candidate key for REFRIG, giving reasons why it can or cannot be a key: {M}, {M, Y}, {M, C}.

b. Based on the above key determination, state whether the relation REFRIG is in 3NF and in BCNF, giving proper reasons.

c. Consider the decomposition of REFRIG into D = {R1(M, Y, P), R2(M, MP, C)}. Is this decomposition lossless? Show why. (You may consult the test under Property NJB in Section 16.2.4.)

Answers

Maurice Tutor
(5)
Status NEW Posted 24 Oct 2017 08:10 PM My Price 4.00

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