c) Consider the following relation R with the functional dependencies: AC B, AD E, AB C, E F, ВС —А, and B-D. R A B C D E F 1 3 4 6. 7 8 9. 10 Is {AB, BC, ABDE, EF} a lossless-join decomposition? Explain. Is the decomposition {ABC, ACDE, ADF} lossless join? Determine the projection of the set of functional dependencies of R onto ABC, ACDE, and a) b) c) ADF. Is this decomposition dependency preserving? d) Decompose R into a set of 3NF relations, that is lossless join and dependency preserving.
c) Consider the following relation R with the functional dependencies: AC B, AD E, AB C, E F, ВС —А, and B-D. R A B C D E F 1 3 4 6. 7 8 9. 10 Is {AB, BC, ABDE, EF} a lossless-join decomposition? Explain. Is the decomposition {ABC, ACDE, ADF} lossless join? Determine the projection of the set of functional dependencies of R onto ABC, ACDE, and a) b) c) ADF. Is this decomposition dependency preserving? d) Decompose R into a set of 3NF relations, that is lossless join and dependency preserving.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
I need the answer as soon as possible
![c) Consider the following relation R with the functional dependencies: AC-→B, AD E, AB→C, E F,
ВС -А, and B-D.
RA
B
C
D
E
F
1
2
3
4
5
6.
7
8
10
b)
c)
Is {AB, BC, ABDE, EF} a lossless-join decomposition? Explain.
Is the decomposition {ABC, ACDE, ADF} lossless join?
Determine the projection of the set of functional dependencies of R onto ABC, ACDE, and
ADF. Is this decomposition dependency preserving?
d)
Decompose R into a set of 3NF relations, that is lossless join and dependency preserving.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F728f9743-26b4-47aa-8a0c-213bdf52ed57%2F1298aac2-692c-496d-be33-f59d1a886157%2F3l90dv0a_processed.jpeg&w=3840&q=75)
Transcribed Image Text:c) Consider the following relation R with the functional dependencies: AC-→B, AD E, AB→C, E F,
ВС -А, and B-D.
RA
B
C
D
E
F
1
2
3
4
5
6.
7
8
10
b)
c)
Is {AB, BC, ABDE, EF} a lossless-join decomposition? Explain.
Is the decomposition {ABC, ACDE, ADF} lossless join?
Determine the projection of the set of functional dependencies of R onto ABC, ACDE, and
ADF. Is this decomposition dependency preserving?
d)
Decompose R into a set of 3NF relations, that is lossless join and dependency preserving.
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