Q2: When the following FDs are defined in R(A, B, C, D), А — D, CD — В, А —— С (1) Identify the candidate key(s) in R. (2) Identify the best normal form that R satisfies (1NF, 2NF, 3NF, or BCNF) (3) If R is not in BCNF, decompose it into a set of BCNF relations that preserve the dependencies.

Q: 2. Eliminate all ɛ-productions in the following cfg G: G= ({S,A,B}, {a,b,c}, {S→Aa|BBBA, A bS|ɛ,…

A:

Q: Please solve this problem:

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Q: (Q.17) Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the following…

A: Given: {AB->C, BC->D, CD->E, E->F}

Q: 3. Given a relation R( A, B, C, D) where FDs ans CKs are such : FDs AB -> C, BC -> D, CD -> A CKs АB…

A: Here in this question we have given a relation R and we have asked to check highest normal form in…

Q: Consider the schema R = (A, B, C, D, E, G) and the set F of functional depen- dencies: AB → CD ADE…

A: a. To find the candidate keys of R, we need to determine the attribute closure of every subset of…

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Q: Q # 3; (a). The relation ‘R’ is defined on the set M=(4,5,6,7) as the following;…

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Q: Consider a schema R, a set F of functional dependencies on R, and two candidate keys (k1, k2) as…

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Q: 1. There exists a relation S(A, B, C, D, E, F) with the below functional dependencies. {A}→{D}…

A: a. No, A,B is not a superkey. The functional dependency {A}>{E} implies that A is not a superkey.…

Q: Suppose relation R(A,B) has 5 tuples, S(B,C,D) has 3 tuples, and T(M,N) has 4 tuples. Also, suppose…

A: Given R(A,B) has 5 Tuples, S(B,C,D) has 3 tuples , and T(M,N) has 4 Tuples

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A: The first option is the correct choice. Find teh code implementation below.

Q: Consider the relation R(S, N, R, C, J, H, L) and its set of dependencies F = {S, N -> C ; J, H, C ->…

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

Q: Given: Relation R = {(a,c), (b,c), (c,c)} and Set S = {a, b, c} %3D Complete Relation R to be…

A: Given: To make the relation R symmetric.

Q: DBMS

A: According to our policy we solve first one only. ============================== About BCNF: the…

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

A: Given:- i. PQ → TY ii. P → QR iii. QST → R iv. STR → P   From the above functional dependencies,…

Q: SIf a decomposition of a relation R into R¡ and R2 is lossless, then which of the followings are…

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Q: 1) Let F be a set of functional dependencies given as: F = {A'- BC, B → C, A - B, AB → C}; Find…

A:

Q: What is the definition of exclusive or (O) in terms of A, V, and ? i.e. p q =

A: Let's see the solution.

Q: Simplify the following Boolean Expression and create the logical diagram usingNAND or NOR…

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Q: Use set identities to prove the following equivalence: A (BA) = A

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Q: Let R(A, B, C, D, E) be a relation with the set of FD's: F = {D → C, C → D, D →A, C –→ A, E → C, E…

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Q: Self Study Examples: Try to code listing for the Primary-Foreign key relations of the sets given…

A: Answer: I have done code  and also I have attached code and code screenshot as well as output

Q: From the given set of functional dependencies,determine that there can be more than one canonical…

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Q: QUESTION 49 If 60% of all clinics are closing because they've lost federal funding and 70% of all…

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Q: Let FD ={G → A, A → BC, C → FG, E → HG} be a set of functional dependencies. Calculate the…

A:

Q: Consider R(A,B,C,D) and Functional dependencies A -> B, B -> C, C-> D, D -> B. Following…

A: Given:

Q: Q4. Find the recurrence relation and solve it using back substitution and master theorem Void…

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Q: Given two sequences A and B. Let X(A, B) denote the number of times that A appears as subsequence of…

A: m:  Length  оf  str1  (first  string)n:  Length  оf  str2  (seсоnd  string) If  lаst  сhаrасters  оf…

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A: SUMMARY: -   Hence we discussed all the points.

Q: Consider F = {BC -> D, B -> E, CE -> D, E -> CA, BF -> G} and R(A,B,C,D,E,F,G) 8.Apply the lossless…

A: Decomposition of a relation is done when a relation in relational model is not in appropriate normal…

Q: Discuss how to transform F into a 3CNF

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Q: For the same feature, it is feasible to have both a primary key and a candidate key.

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Q: er the questions

A:

Q: List the advantages of 3NF over BCNF     Can always preserve functional dependencies     Ensures…

A: The correct answer to this question is option a) can always preserve functional dependencies.

Q: Devise a branch-and-bound algorithm for the SET COVER problem. This entails deciding: (a) What is a…

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