Consider the relation scheme R (A, B, C, D, E) and the set of functional dependencies F = { A –→ BC; CD → E; B→D; E-→ A} on R. Find closure set of functional dependencies (F)+. What is the key for R?

Q: Give an algorithm for testing whether a relation scheme is in BCNF. The algorithm should be…

A: The question has been answered in step2

Q: Given relation R(A, B, C, D, E, F, G, H, I, J) and the following set of function dependencies,…

A: I have given an answer in stpe 2.

Q: Consider a relation with schema R(A,B,C,D,E,G) and functional dependencies (FDs) C→D; B→A; D→E; E→G…

A: Answer is given below .

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A:

Q: Given a relation R(P ,Q ,R ,S, T, U,V,W, X,Y)   and functional dependency set FD =…

A: Given a relation R(P ,Q ,R ,S, T, U,V,W, X,Y)   and functional dependency set FD =…

Q: The relation R(A, B, C, D, E) has the following functional dependencies. А, В - С В, С -> D C, D→E…

A: Attached Solution for (a) and (b) part:

Q: Given the following relation schema R(B, N, O, A, T, C) and the set of functional dependencies F =…

A: F = {C-->OT, O-->AC, CN-->B, CB-->A, B-->N}: R(B, N, O, A, T, C)

Q: Find a minimal cover in a standard form for the relation schema R(A, B,C, D, E, F, G, H) with the…

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

Q: Consider a relation R(A,B,C,D,E) with functional dependencies AB→C, A→D, and D→E. (a) What are…

A: (A ) keys for relation R) is AB   Reason : -- because key is column or set of columns using that you…

Q: 1. Given a relation model R, where U = {A, B, C, D, E}, F = {A->BC, C->D, BC->E, E->A}. The…

A: Note:- Please send the question once again if you wish to answer another question, as set out in the…

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

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-

Q: Consider the following set F of functional dependencies on the relation schema(A, B, C, D, E, G):A →…

A: Given FDs: -

Q: Consider the following set of functional dependency for the relation schema R = (А, В, С, D, E, F,…

A: Functional Dependency: A functional dependency refers to the connection between any two fields of a…

Q: Problem 1 Convert the following relation to 2NF, and then to 3NF. Show both conversions. (h, n, c,…

A: In this question, first, we find the 2NF. In 2NF, for relations where the primary key contains…

Q: Consider the relation schema R (A, B, C, D, E, F, G, H) with the set of functional dependencies K =…

A: Actually, given relation schema R (A, B, C, D, E, F, G, H)...  functional dependencies K = {A→B,…

Q: Consider the following set F of functional dependencies on the relation schema(A, B, C, D, E, G):A →…

A: The original relation is r(A,B,C,D,E,F). This relation is not BCNF due to the first functional…

Q: Consider the relation R(A, B, C, D, E), and the decomposition of R into R1(ABC) and R2(ADE). (a)…

A:

Q: Consider a relation R={A,B,C,D,E,F,G,H,I} with the set of functional dependencies and determine,…

A: Now we must determine the above definition whether for each FD. Each value is super key or not on…

Q: Consider the schema R = (A, B, C, D, E, G) and the set F of functional dependencies:A → BCBD → ECD →…

A: According to question, There is a relation R = (A, B, C, D, E, G) with F of functional dependencies:…

Q: Given a relation schema R = (A, B, C) and its functional dependencies F = {A →B, B→ C). Suppose R is…

A: Answer is given below-

Q: Given the relation R (A, B, C, D, E) and the following set of functional dependencies: F = {ABC,…

A:

Q: 8. Consider the following relation instance of the CAR relation schema: CAR Model #cylinders Origin…

A: Actually, database is a used to stores the data.

Q: Consider the following set of functional dependency for the relation schema R = (А, В, С, D, E, F,…

A: Objective: A relation R (A,B,C,D,E,F,G,H) is given. We need to convert this functional dependency up…

Q: Consider the relation schema R(A, B, C, D, E, F) with the following set of tional dependencies FDs F…

A: We are given a relation schema and it is decomposed into several schemas. We are going to find out…

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

A: Given:

Q: Consider a relation schema R = {A, B, C, D, E, F, G} with the following set of functional…

A: A relational schema R with the set of functional dependencies

Q: Consider the relation schema R(A, B, C, D, E, F) and the set S = {AB->C, BC->AD, D->E, C->B) of…

A: ANSWER:-

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…

Q: Consider a relation schema R = {A, B, C, D, E, F, G} with the following set of functional…

A: A relation Schema of the set of functional dependencies

Q: Describe how the weak entity of an E-R diagram is transformed into relations

A: E-R (Entity Relationship) diagrams: An entity-relationship diagram is an image or snapshot of the…

Q: Consider a relation (p, q, r, s, t, u, v) with functional dependencies as given below: p>q r>s,t…

A: Defined candidate key for the given relational schema

Q: let F, be a canonical cover for F, i:= 0; for each functional dependency a → ß in F. i:=i+ 1; R, :=…

A: Answer :

Q: Problem 1 Convert the following relation to 2NF, and then to 3NF. Show both conversions. (h, n, c,…

A: 2NF: A relation is in 2NF if it is already in 1NF and all functional dependencies should be full…

Q: Consider a relation schema R = {A, B, C, D, E} and its functional dependency set F = {A → B,CD → E,B…

A:

Q: Consider a relation schema R = {A, B, C, D, E, F, G} with the following set of %3D functional…

A: In this question, we have a relation schema R along with its functional dependencies F. Also given 4…

Q: Consider a relation schema R= (X, Y, Z) on which the following functional dependencies hold: {XY →…

A: Here in this question we have given a relation schema R = (X, Y, Z) on which the following…

Q: Given a relation R( P, Q, R, S, T, U, V, W, X, Y) and Functional Dependency set FD = { PQ → R, P →…

A: Given: a relation R( P, Q, R, S, T, U, V, W, X, Y) and Functional Dependency set FD = { PQ → R, P →…

Q: Consider the relation R(A,B,C,D,E), with A as a key. We also have the functional dependency CEA. Can…

A: Define the given relation R redundancies or not

Q: Consider the relation schema R=VWXYZ, with the set of functional dependencies F = {VW->XY, V->X,…

A: Given, The relation schema R=VWXYZ, with the set of functional dependencies F = { VW → XY, V → X, W…

Q: Transform an entity-relationship (E-R) diagraminto an equivalent set of well-structured(normalized)…

A: Lets see the solution.

Q: Consider thne universal relation R (AB. E F, G, H, I. JJ and the set of functional dependencies F =…

A: A functional dependency x->y is said to be partial functional dependency if X is part of key or…

Q: Consider the functional dependency of relation R (A, B, C,D) F%3D {A—ВС, В-С, А —В, АВ—D; Compute…

A: Closure Sets Of F+ is all three sets and closure of B+ is second one( in bold) {A}+= {A,B,C,D} {B}+=…

Q: Consider a relation R = (A, B, C, D, E, F, G, H, I, J) and the set of functional dependencies F =…

A:

Q: Consider a relational scheme R(A,B,C,D,E,H)R(A,B,C,D,E,H) and functional dependencies…

A: Given relational schema is R(A,B,C,D,E,H) Functional dependencies A→B,BC→D,E→C,D→A Candidate key…

Q: Consider the universal relation R (A, B, C, D, E, F, G} and the set %3! of functional dependencies F…

A: The Relation given is : R = { A, B, C,D ,E, F, G} And the functional dependencies are: B,C --> A…

Q: Give an example of a relation schema R′ and set F′ of functional dependencies such that there are at…

A: Answer: The relation R' = (A, B, C, D) the set of functional dependencies F' = A->B, C->D,…

Q: Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: {XY →…

A:

Q: a) Give an interpretation that is a model of A. You must mapp and q to different relations. b) Show…

A: Predicate Quantifiers is used in system modelling & Design

Q: Consider the relation scheme R = {A, B, C, D, E, G} and the set of functional dependencies for the…

A: Below is the answer to above both parts. I hope this will meet your requirements...

Q: Our discussion of lossless decomposition implicitly assumed that attributes on the left-hand side of…

A:

Q: A decomposition is in 3NF if every decomposed relation is in 3NF. A decomposition is in BCNF if…

A: I have provided solution in step2

Q: Q2. Given a relation R( P, Q, R, S, T, U, V, W, X, Y) and Functional Dependency set FD = { PQ → R, P…

A: the answer is with full explaination is given below

Q: For this question, short answers (1-2 sentences) are sufficient: A. Explain the difference between a…

A: Below is the answers of both questions. I hope this will be helpful for you..

Q: Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: { XY →…

A: Here in this question we have given a relation schema R = (X, Y, Z) on which the following…

Q: Consider a relational scheme R(A,B,C,D,E,H) and functional dependencies A→B,BC→D,E→C,D→A. Find all…

A: In the functional dependencies above E, H are not present at the right hand side hence a candidate…

Q: Consider the functional dependency of relation R (A, B, C,D) F = {A→BC, B→C, A→B, AB→D} Compute…

A: Closure Set of F+ is: A→A, A→B,A→C, B→B, B→C,C→C, D→D, AB→A, AB→B, AB→C, AC→A, AC→B, AC→C,…

Q: Consider a relation schema R(A,B,C,D,E,H,G)   F = {A->BC, B->C, C->BED, BD-> E, E->D, AG->E, G->H,…

A: Answer is given below-

Q: Consider a relation R(A,B,C,D,E) with functional dependencies AB→C, A→D, and D→E.   (a)  What are…

A: In given question, we have asked the key for given Relation R and closue of A and closure of AC. Key…

Q: Consider the relation R(A,B,C,D,E,F,G) with the following functional dependencies: A-CDE, B F.…

A: Given Data : Relation :- A,B,C,D,E,F,G Dependency :- A->CDE , B->F

Q: Suppose we have a relation schema R(A, B, C) with FD A → B. Suppose also that we decide to decompose…

A: Answer

Q: Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: { XY -…

A: Here in this question we have given a relation schema R = (X, Y, Z) on which the following…

Q: Suppose a relation R has attributes A, B and C that satisfies the functional dependency A-B and…

A: 1) 10 records will be retrieved.   2) Option-b is correct It is in 3NF but not in BCNF   3) Option-c…

Q: A known relationship mode of R (U, F), U= (c, t, h, r, s, g, q); F={c->tq, cs->g, ht->r, hr->c,…

A: The given part from the question that is the relation R(U, F) which is defined as follows:- U = {c,…