Consider the following set F of functional dependencies on the relation schema (A, B, C, D, E, G): A → BCD BC → DE B → D D → A a. Compute B+. b. Prove (using Armstrong’s axioms) that AG is a superkey. c. Compute a canonical cover for this set of functional dependencies F; give each step of your derivation with an explanation. d. Give a 3NF decomposition of the given schema based on a canonical cover. e. Give a BCNF decomposition of the given schema using the original set F of functional dependencies.

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A:

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A: Answer is given below .

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A: given that

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A: Step 1: Step 2:

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A: using Armstrong's axioms=> proved in figure figure 1:

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A: A minimal cover or canonical cover means a minimum set of functional dependencies. A canonical cover…

Q: PQ → TY ii. P → QR iii. QST → R iv. STR → P   From the above functional dependencies, using…

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A: To address each part of your question:2a) Determine the keys of the schema:To find the keys of the…

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A:

Q: 1. If we project the relation R(A,B,C,D,E) with dependencies A→→BC, B→D, and C→→E onto S(A,C,E),…

A: Answer is given below-

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A: Answer to the above question is in step2.

Q: Decompose R into a set of 3NF relations, that is lossless join and dependency preserving.

A: Here we decompose it in 3nf and check dependency preserving.…

Q: . Consider the following relation with set of functional dependencies R(ABCDEF) ABC->D, ABD->E,…

A:

Q: Minimization of a logical function with Weich maps:  Vm(0,1,2,3,4,5,6,7,10,13)

A:

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A: The answer is below:

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A: Functional dependency is a relationship that is shown between two or more attributes of a table.…

Q: Consider a schema R and a set F of functional dependencies as follows: R= (A,B,C,D,E,G). F = {A →…

A: First of  all , let’s understand what is super key.      Super key : Super key can be defined as  an…

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A:

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A: In the given case, we prove all three one by one.

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A:

Q: R = ABCD F3{C-D, C-А, В -С } A. Find all candidate keys. B. What is the strongest normal form that…

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