Consider a relation R(A,B,C,D,E) with functional dependencies AB→C, A→D, and D→E. (a) What are the keys for R? (b) What is the closure A, that is A+ ? What is the closure AB, that is (AB)+ ?

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: 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: Question 1 Suppose you are given a relation R = (A, B, C, D, E) with the following functional…

A:

Q: Consider the relation r(A,B ) with the following instance of r. Which of the functional dependencies…

A: Rules to check valid functional dependency from   α -> β   Check if all the values of α are…

Q: 4D. The relation encoded by the matrix below is (select all that apply). [1 0 0 1 0 0 0 0 1 a…

A: A function is a relation or a mechanism in which every element x of any set X (domain of the…

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: Consider the following Relation (R) and its Functional dependencies. R(0, μ, y, α, B), {0, µ} → {a},…

A: Candidate key is Qu As per guidelines solve only first question please repost question as a…

Q: Give an example of a relation schema R and a set of dependencies such that R is in BCNF but is not…

A: Answer: The relation schema R = (A, B, C, D, E) and the set of dependenciesA →→ BCB →→ CDE →→…

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: Problem 3 Consider the relation R = {A, B, C, D, E, F,G, H, I, J} and the set of functional…

A:

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: QUESTION 8 Here's a relation (R), its attributes, and its functional dependencies (F): R(A, B, C, D,…

A: A functional dependency is defined as if in a relation A→B , the values in attribute A have the same…

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 the relation R(A, B, C, D, E) and the set F = {AB → CE, E → AB, C → D}. What is the highest…

A: Solution - Given relation is - R(A, B, C, D, E) and the set F = {AB → CE, E → AB, C → D} To identify…

Q: ! A Relation R (X, Y, Z, S, T) with functional dependencies F(X YZ; ZS T;Y-SB T-X). A. Find F" for…

A: We are given a relation R with their functional dependencies. First we are going to find out their…

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: 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…

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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, 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: Question 6. Consider the relation R(ABCDE) and its functional dependencies set {AB->C, C->E, B-> D,…

A: Answer of the given question: choice (d) is the correct answer.  Lossless Decomposition:  Lossless…

Q: For relation (R), its attributes and its functional dependencies (F): R(A, B, C, D, E) CD-> B A- D…

A: A relational schema R is considered to be in Boyce–Codd normal form (BCNF) if, for every one of its…

Q: Computer Science Given the relation R (A, B, C, D, E, F, G) and the set of functional dependencies:…

A:

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 consisting of the attributes A, B, C, with the following set of functional…

A:

Q: Let's suppose, a relation R=(A, B, C, D, E. H) with a set of functional dependencies F: (AE->BC, B…

A: Functional dependency is a DBMS concept . In this attributes of relations  are dependent on each…

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

A:

Q: elation with proper steps followed. Explain in detail b) Identify which normal form this relation is…

A: Given : R(ABCDEF) ABC->D, ABD->E, CD->F, CDF->B, BF->D

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

A:

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: Consider a relation r(A, B, C), with an index on attribute A. Give an example of a query that can be…

A: Example: Consider a relation r(A,B,C) holding an index on attribute “A”. The query plans that only…

Q: Consider the relation R(A, B, C, D, E), where it is known that the only keys are KA, C, D} and {D,…

A: Functional Dependency: This is a connection between two attributes, wherein the attribute on the…

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: Given the following relation: R (A, B, C, D, E, F, G) The functional dependencies that apply onto R…

A: The question is on database normal forms and 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: 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: Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: {XY -…

A: The answer of the question is given below:

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,…

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

A: The given set of functional dependencies are: (A, B, C, D, E, G):A → BCDBC → DEB → DD → A  Now, we…