QUESTION 8 Here's a relation (R), its attributes, and its functional dependencies (F): R(A, B, C, D, E, F, G) BC DG CD F FG A 1-Compute the closure of (ACD}+ 2-Compute the closure of (F)+ 3-What are the keys of R?

Q: Which of the followings can possibly be a canonical cover Fc of a set F of functional dependencies?…

A: The answer to this question is option b) {A → D, AB → C, D → B} and d) {A → C, D → B, AB → C}

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

A:

Q: Explain weak and strong entity sets.

A: 1) An entity set refers to a collection of similar objects, concepts, or ideas that can be uniquely…

Q: Let R(A,B,C,D) be a relation with the set of functional dependencies F={AB->C,C->D). Decompose the…

A: Answer is

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

A: f ={     AB → C,      A → D,      B → F,  F → GH,  D → IJ   } To find the key check the RHS of the…

Q: B.  Draw the digraph of the relation on {a, b, c, d} 1.  {(a, b), (b, b), (b, c), (c, d), (d, a)}…

A: Digraph is a directed graph consists of a set of nodes and set of ordered pairs called edges. Here,…

Q: • Let A be the set A={a,b,c,d} and R is a relation on set A, where R= { (a,a), (a,b) ,(b,a),(b,b),…

A: A = {a,b,c,d} R= {(a,a),(b,a),(b,b),(c,d),(c,c),(d,d)}

Q: Problem 1: A database for an online store has the following relational schema to keep track of…

A: A functional dependency in the setting of relational databases is a connection between two or more…

Q: Let R(A,B,C,D,E,F,G) be a relation with the FDs: F= (CDG, DG-C, AD-G, G-A, AB-F). Consider the…

A:

Q: 1. Given each relation write down the properties that the relation has. If the relation does not…

A: Below is the answer with explanation:

Q: Random Hospital Example ERD Problem Follow the Simple Procedure for ERD diagramming to design an…

A: ans given below

Q: The decomposition of one relation say R into two relations is classified as a. functional…

A: c) binary decomposition

Q: What's the difference between weak and strong entity sets?

A: What's the difference between weak and strong entity sets?

Q: Consider a relation R with six attributes A, B, C, D, E, F. You are given the following…

A: In the context of databases, a relation refers to a table or a set of tables within a relational…

Q: Normalization: elational schema and FR corresponding set of functio R = ABCDE FR = {AC, BD, C → A}

A: Tables are arranged using the normalization method in the database architecture to reduce data…

Q: Now start with these functional dependencies: АВ > Е C → D F → GH FG → GH В > FG Find a minimal…

A: A) AB ->E, C->D, F->GH, FG->GH, B->FG Here in FD FG->H, we can delete G from RHs…

Q: Let G represent a canonical cover for a set of functional dependencies, F. Which of the following…

A: A canonical cover is a minimal set of functional dependencies that captures the same information as…

Q: ER-diagrams are high-level design of the Database. The given ER-diagram describes the Dentist…

A: Weak entities are represented with double rectangular box in the ER Diagram      office, supplier,…

Q: 5 A 1 R 4 6 B 2 6 8 B 4 9 7 с 5 The full outer join has 3 NULLS. he left outer join has 4 NULLS. S…

A: In this question two tables are given as the R and SIt is asked to perform full outer joinright…

Q: Given the following relation R and its functional dependencies, what is the key of R? R(A, B, C, D,…

A: Key is basically which closure determines all the attributes A-->B B-->E E-->C Using…

Q: HouseSale (houseID, agentID, dateSold, commissionRate, interestRate) Where: dateSold →interestRate…

A: Answer: Given  HouseSale(houseId, agenId, dateSold, commisionRate, InterestRate)…

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: Question 3 Consider a relation A(P, Q, R, S, T) with following functional dependencies. i.Р— QR ii.…

A: Relation: f a purposeful dependency X->Y holds true whereverY isn't a set of X then this…

Q: Consider the following relation: R (A, B, C, D, E, F) You are given the following list of functional…

A:

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: Consider the following Relation instance of R1(A, B, C, D): A D Null Null 1 Null Null 1 1 Null 1 2 4…

A: A relation stores data about entities using database languages. The structure of a relation is…

Q: 32 of 40 Suppose attribute A is a key in the relation R. Which of the following statements is not…

A: Attribute A is a key in given relation R. And we have to check, which statement is not correct in…

Q: this information. Find all the candidate keys. What type of de

A: Relational Database A relation R is given which is R(A,B,C,D,E). It has the following functional…

Q: 1.) Let R be a relation defined on the set Z by aRb if a < b. What property/properties are violated?…

A: Question 1: The Reflexive Property of a relation states that for every (x,x) belongs to relation R…

Q: Given the relation R(A, B, C, D, E, F), the following functional dependencies exist: B --> C, D D…

A: Given : R(A, B, C, D, E, F) B --&gt; C, DD --&gt; F

Q: Let G represent a canonical cover for a set of functional dependencies, F. Which of the following…

A: Canonical cover:A canonical cover is a minimal set of functional dependencies that captures the same…

Q: g set of five functional dependencies which hold on R: A → B A C BD → E EC → A E →G ompute the…

A: Closure (CE) = { C, E, G, A, B} Closure (AD) ={A, D, B, C, E, G}