Suppose R(A,B,C,D,E) and we have the functional dependencies F= { A->C, C->D, B->C, DE->C, CE->A }

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

A: Given information: - A schema R, a set of FDs F and the two candidate keys (k1, k2) are shown below:…

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

A: Given information: - A schema R, a set of functional dependencies F and two candidate keys (k1, k2)…

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

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

A: Given information: - R is schema in which F is a set of functional dependencies two candidate keys…

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

A: The Answer is

Q: Consider a schema R and a set F of functional dependencies as follows: R = (A,B,C,D,E). F = {A →…

A: To check for lossless join decomposition using functional dependency, the following set of the…

Q: Consider a schema R and a set F of functional dependencies as follows: R = (A,B,C,D,E). F = {A →…

A: Given information: - A schema R and a set of functional dependencies as follows: - To determine the…

Q: Using the functional dependencies of Exercise 7.6, compute the canonicalcover Fc.

A: Using the functional dependencies of Exercise 7.6, compute the canonicalcover Fc. Hence I have found…

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

A: Given:

Q: Given R ={A, B, C}, and the set of Functional dependencies   A→B, B→C. (a) Is the decomposition of…

A: Explanation:

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

A:

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 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 --> CD…

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 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: Suppose that R1 and R2 are symmetric relations on a set A. a) Is R1 U R2 also symmetric? Is R1 ∩ R2…

A: Since you have asked multiple questions, we will be answering only the first question, as per the…

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

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

A: The relation schema R is in a (BCNF) with respect to a set F of FDs if, and only if, for each FD X→Y…

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 relation scheme R = {A, B, C, D, E, F, G, H} with the following set of functional…

A: Candidate keys are the set of smallest essential attributes that can generate all the values in the…

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

A: I have given an answer in step 2.

Q: Suppose that we decompose the schema R = (A, B, C, D, E) into (A, B, C) (A, D, E). Show that this…

A: The given functional dependencies are as follows. A → BCCD → EB → DE → A   Consider the decomposed…

Q: Consider a schema R = {A,B,C,D,E}and the following set of functional dependencies: {AB → C,C → D,D →…

A: To find: To find whether the given function is Boyce-Codd normal form or not.

Q: Assignment: Which of the following links are equivalent/inequivalent? Where links are inequivalent,…

A: Which of the following links are equivalent/inequivalent ? what links are inequivalent .what is the…

Q: Let R be the relation on the set {a,b,c,d} containing the ordered pairs (a,a), (a,c), (b,b), (b,c),…

A: Let R is a relation on a set A, that is, R is a relation from a set A to itself. Then R◦R, the…

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

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

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

A: For every options given, find the closure set of left side of each FD. If the closure set of left…

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

A: Answer of the given question:  Functional Dependency (FD) is a requirement that decides the…

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

A: Answer: Functional Dependency: Functional Dependency (FD) is a limitation that decides the…

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

A: Introduction :Given , A functional Dependency set , {AB->C, BC->D, CD->E, E->F} We have…

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

A: Here in this question we have given some FDs and we have asked which of the following FDs are…

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

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

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

A: Candidate Key: A minimal super key is known as the Candidate key. Superkey refers to the attributes…

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

A: If a decomposition of a relation “R” into “R1”, and “R2” is lossless then it produces “R” by…

Q: In this problem, we wish to build a repository of functions that a developer can assemble to build a…

A: Answer:)

Q: Suppose that a B+-tree index on (dept name, building) is available on relation department. What…

A: Given:  ( building < “Watson”) ∧ ( budget < 55000) ∧ ( dept name = “Music”)(department)

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

A: I have given an answer in step 2.

Q: Suppose a relation is stored in a B+-tree file organization. Suppose secondaryindices store record…

A: Indexing in databases Indexing is defined as a data structure that optimizes the database…

Q: Define Working Set. What is the context? What are consequences of incorrect working sets?…

A: Working set:  The working set of a process of the set of pages in the virtual address space of the…

Q: Execution of translation in isolation preserves the _________ of a database a. Atomicity b.…

A: Here is the solution which is mentioned below:

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}

Q: In this problem, we wish to build a repository of functions that a developer can assemble to build a…

A: Answer :

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”