Question 3. Suppose we have a relation R = (A, B,C, D, E , F) with a set of function ependencies F = {A → DE, AC → B, B → D}. This relation is not in Boyce-Codd Nor orm. Using one of the provided functional dependencies as a starting point, rovide a lossless decomposition of R into a set of relations {R1, ..., Rn} Such that esulting relations are all in BCNF. Show your work, explaining exactly how each

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: Suppose we have the following relation schema R and set of functional dependencies F: R = (A, B, C,…

A: Here in this question we have a relation R (A B C D E F G) and some FDs also given there.and we have…

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: Given FDs: -

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 .

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

A: 3NF Decomposition: Given: Relation R,  Set F of functional dependencies. Find: Decomposition of R…

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

A: Answer to the above question is in step2.

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

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: Show that the following decomposition of the schema R of Exercise 7.1 is not alossless…

A:

Q: Show that the following decomposition of the schema R of Exercise 7.1 is not alossless…

A: Given: Show that the following decomposition of the schema R of Exercise 7.1 is not alossless…

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

A: For this problem, we must get all the keys. For this, we must check all the attributes which are…

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

A: Super key is defined as a set of attributes within a table that can uniquely identify each record…

Q: Consider the relation scheme R (A, B, C, D, E) and the set of functional dependencies F = { A –→ BC;…

A: Closure (A) =(A, B, C, D, E)  Closure(CD) =(C, D, E, A, B)  Closure (B) =(B, D)  Closure (E) =(E, A,…

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

A: Given a set of functional dependencies on a relational schema and we need to give a BCNF…

Q: Answer the following questions about the relation R(a, b, c, d, e, f), with functional dependencies:…

A: Answer : R(a,b,c,d,e,f) a->f ab->cd c->e de->b bf->ae It  not violate any normal…

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: All parts of this question use the relation R = (ABCDEG) with the set of functional dependencies F…

A: 1) The given relation is : R = (ABCDEG) The given set of functional dependencies F is : A→BC AD→G…

Q: 21o of 40 A decomposition is in 3NF if every decomposed relation is in 3NF. A decomposition is in…

A: We have a relation R(A,B,C,D,E,F,G) and functional dependencies. We have decompose R into 4…

Q: You are given the following set of functional dependencies for a relation R= (A, B,C,D,E,F), F= (AB…

A: A) The functional dependency are AB->C DC->AE E->F The key for the given relation is set of…

Q: Find a minimal cover for the relation R(A, B, C, D. E, F) with the set K = {A→D, AC DE, B-F, D→CE}…

A: A minimal cover of a set of FDs is a minimal set of functional dependencies that is equivalent to F.…

Q: Normalization Here is a set of FDs for a relation R {A, B, C, D, E, F, G}; AB BC>DE AEF>G AC>DE a.…

A: Given, Relation schema = ( A, B, C, D, E, F, G ) The set of functional dependencies are : A -> B…

Q: Question: Consider the relation: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q), {A, B} is the…

A: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q) Candidate key: {A, B}, {C,D,E}Prime attributes Non…

Q: bu are given the following set of functional dependencies for a relation R= (A , B C,D,E,F), F=…

A: Key of relation,relation in BCNF and dependency preserving decomposition

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: You are given a binary relation R (defined below) on A. Each tuple (a, b) indicates that a is…

A: Hey there, I am writing the required solution based on the above given question. Please do find the…

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

A: Primary key = AB as we can see in closure that we can find every attribute using AB

Q: c) Consider the following relation R with the functional dependencies: AC B, AD E, AB C, E→F, BC A,…

A: Given functional dependencies, AC→BAD→EAB→CE→FBC→AB→D

Q: Suppose a relation schema R = (A, B, C, D) is decomposed into following relations R1(A,B,C) and…

A: A relation schema R is decomposed into R1 and R2

Q: Consider the relation R(A,B,C) with the functional dependencies: B A, CA, and AB C. a) Show the…

A: Below i have answered 1 st question only:

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

A: ANSWER IS C   R is not IN 3NF and not in BCNF

Q: . Consider the relation R, which has attributes that hold schedules of courses and sections at a…

A: Let us first of all make use the following shorthand notation: C = the CourseNo, SN = the SecNo, OD…

Q: Consider the relation R, which has attributes that hold schedules of courses and sections at a…

A: Actually, the question is about Normalisation:

Q: 3. Suppose you are given a relation R(PQRSM)and the F, the set of functional dependencies that hold…

A: R(P, Q, R, S, M)  PQ -> R PQ -> S R -> P S->Q (PQ) + ={PQRS} (RS) + ={RSPQ} Therefore…

Q: b) Given the relation R(W,X,Y,Z). We have the following functional dependencies: XY W, Y-Z, YW→X,…

A: The answer is handwritten as it include some table data .the answer is given below

Q: QUESTION 19 Eiven relation R(A, B, C, D, E, F, G, H, I, J) and the following set of function…

A: Given,  AB -> C A -> DE F - > GH D -> IJ A+ (Closure) = ADEIJ Explanation: A -> A…

Q: A decomposition of a relation R into Rị and R2 is dependency preserving, if - (a) R can be…

A: Answer: The correct option is “(d) All of them”

Q: If R is a relation on I such that xRy if and only if x<y, then R is a partial order relation.

A:

Q: Q2: Given relation R with attributes (A, B, C, D, E, F). Give all the keys of R if the functional…

A: Given relation R(A, B, C, D, E, F)   Functional Dependencies: AB → C,  CD → E,  E → F   A, B, D do…

Q: In the BCNF decomposition algorithm, suppose you use a functional dependency α → β to decompose a…

A: When the foreign key constraint is not imposed, then the tuple's deletion from the r1 would not have…

Q: Problem 4.3 (**) Assume that relation PROJ is fragmented as in Problem 4.1. Furthermore, relation…

A: Find the reduced query as:   SELECT ENAME   FROM EMP1, ASG, PROJ

Q: The relation R defined on ℝ  where aRb if and only if a< b is an equivalence relation.  True or…

A: Given: The relation R defined on ℝ  where aRb if and only if a&lt; b is an equivalence relation.…

Q: Compute the closure of the following set F of functional dependencies for relation schema R = (A, B,…

A: The Functional  Schema R= (A,B,C,D,E) Given functional dependencies : A  →  BC CD → E B → D E  → A…

Q: Let A = {a, b, c} Define a relation as follows: ARA = {(a, b), (a, c), (b, c)} To obtain the…

A: A relation R is reflexive if and only if (a, a) ∈ R , ∀a ∈ A   Here,  A = {a, b, c}   Therefore, (a,…

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

A: Given schema R = (A,B,C,D,E,G) and set of FD's are             F =  AB --&gt; CD…

Q: Write a C program that would: - Let the users accept a relation. - Input options should be in…

A: The C language is a computer programming language which was developed to do system programming for…