Q1Greetings, thatnk you in advance for your response.    - Give a decomposition into 3NF of the following schema; - Prove that your 3NF normalization incurs no loss of functional dependencies  r(A,B,C,D,E) F={ABàCDE, ACàD, BDàE} Thanks again.

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

A: Part(1) AB is basically not the superkey for R, and nor the AB -> CD trivial. Therefore, start…

Q: Relation R has eight attributes ABCDEFGH. Fields of R contain only atomic values. F = {CH -> G, A ->…

A: Actually, given information Relation R has eight attributes ABCDEFGH. Fields of R contain only…

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

A: (a) We can observe that the right side part of functional dependencies that attributes are C, D, E G…

Q: Question 23. The database interface of a library allows searching only for a single attribute (such…

A: GIVEN: It is given that a database interface enables users to search only for a particular field in…

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

A: To find whether the relation is in BCNF or not, it must fulfill all the conditions given…

Q: Show that it is possible to ensure that a dependency-preserving decomposition into 3NF is a lossless…

A: Let F be a set of functional dependencies which hold on a schema R. Let sigma={R1,R2,...,Rn} be a…

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

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 --> CD…

Q: Exercise IV: (a) Given the following relational database schema: R= AB S= BC 2 2 2 21 3 3 Provide…

A: As per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

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: 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: following relation to 3NF showing all the steps involved.…

A: Here key for the given relation is (gpno,patno,cpname,patdob) The FD gpno -> gpname,gpadd patdob…

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: Question 1: FDs and Keys (a) Consider a relation schema R(A, B, C, D, E), and the set of…

A: Here in this question we have given a relation R. And also given set of functional dependenciesF =…

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

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: (10) Discrete Structure: Please solve it on urgent basis: Question # 10 :                  For…

A: A = {1,2,3,4}  R = { (2, 2), (2, 3), (2, 4), (3, 2), (3, 3), (3, 4) } The relation R is not…

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

A: Given:-  schema R = (A, B, C, D, E, G,H) set F of functional dependencies:AB → CDD → CDE → BDEH →…

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

A: The given relation is lossless-join decomposition and not dependency preserving. Hence, correct…

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, 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: 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: 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: 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: Determine with explanations and examples (where appropriate) if each of the following is a trivial…

A: Trivial Functional Dependencies-   A functional dependency X → Y is said to be trivial if and only…

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

A:

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

A: Given schema R with the FDs: -

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: c. For a schema R (A, B, C, D) bearing FDs F={A B, B + C, C + D, D + A}, find if the decomposition…

A: for dependency preserving, F1 U F2 = F where F1 is the functional dependency of R1 F2 is the…

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: 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: 4. Decomposition- BCNF. Consider relation R=(ABCDEFG), F={AB>CD, CDE→AB, AG>BD, BDG>EF} (a) Is it in…

A: The candidate key is the set of attributes which is used to uniquely identify tuples in a table.…

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

A: Given schema is:  R = (A,B,C,D,E,G) whereas set of functional dependencies are: Candidate Key: The…

Q: Q8. Consider a relation schema R (A, B, C, D, E, H), with FDs F = {A→BC, B→CE, A→E, AC→H, D→B}. a.…

A: Given relation schema is R (A, B, C, D, E, H} The functional dependencies present in the table are:…

Q: Use the definition of functional dependency to argue that each of Armstrong’s axioms (reflexivity,…

A: To show the Armstrong’s reflexivity axiom is found:   A function dependency A→B which holds true…

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: B, C, D, E, G, H}, satisfying the functional dependencies F = {E → G, E → H, G → H, A → BC, BC → D,…

A: As per answering guidelines, solving the first 3 question completely.  A)  E → G, E → H, G → H, A →…

Q: Given the schema S=  , where F represents the following dependencies: AB→D A→D E→B B→H H→C E→C…

A: A functional dependency which refers to the relationship between two attributes and typically which…

Q: 1.1Although the BCNF algorithm ensures that the resulting decomposition is lossless, it is possible…

A: Please find the answer to the above question below:

Q: Exercise 2.7 Show that every instance of the schema Ø v (Y^2)] → [Ov y) ^ (Ø v x)] is PL-valid.

A: PL(propositional logic):It states whether the statement is true or false. valid means true.

Q: Consider replacing F by an alternative set of functional dependencies G: AP-> IT I -> ATP Is the…

A: The Answer is in step-2.

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

A: 3NF decomposition: Any relation is said to be in 3NF if it follows following characteristics: The…

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

A: Functional Dependency A functional dependency A->B in a relation holds if two tuples having same…