Given a set of FDs for the relation schema R(C, A, N, D, Y) with the candidate keys (CN), (DN)). • Y. A - DN+Y - DY+C • NC D Tasks: QL. List non-prime attributes Q2. Which of the following is a bad functional dependence? of the relation R. (Enter A, B, C, or D) AY, A B. DN Y C. DY C D. NC + D Q3. The relation R is in (Enter INF, 2NE, 3NF, or BCNF)

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: 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 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 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: 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 a relation schema R = {M, N, P, Q, S} and its functional dependency set F = {N → Q,S → M,M…

A: Given: R = {M, N, P, Q, S} F = {N → Q, S → M, M →P, P → S}   Rule to find Super Key in a relation…

Q: Suppose we have three relations r(A, B), s(B, C), and t(B, D), with all attributesdeclared as not…

A:

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: 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: 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: let F, be a canonical cover for F; i:= 0; for each functional dependency a → B in F. i:= i+ 1; R, :=…

A: Answer :

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: Suppose RR is a relation with attributes A1,A2,…,AnA1,A2,…,An. How many superkeys will RR have if…

A: Given RR is a relation with attributes A1,A2,…,An  a) The only candidate key is A1 b) The only…

Q: Question 2 Composite relations can be thought of as composite functions. If S is a relation from set…

A: As per guidelines we can answer only one question at a time for answers of other question ask…

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

A:

Q: Consider schema(R, F), where R=ABCDE, F={D→EB, E→A, AC→D, BD→E}   Decompose the schema into a set…

A: Each table cell should contain a single value.Each record needs to be unique.In 1NF , a cell…

Q: Suppose two relationsr and s have histograms on attributes r.A and s.A, respectively, but with…

A: Find the largest unit u that evenly divides the range size of both histograms. Divide each histogram…

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: Task 4: Consider the relation schema R(A, B, C, D, E) with the following FDs FD1: {A,B,C} → {D,E}…

A: A)  A relation is said to be in BCNF if all it's functional dependency is of form X->Y where X is…

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

A: Since the given relation r(α, β, γ) is broken into relations, r1(α, β) and r2(α, γ), using the…

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

A:

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: 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 a relation T with seven attributes ABCDEFG where AB is a composite primary key for T.…

A: The provided answer is

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

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

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: Suppose we have three relations r(A, B), s(B, C), and t(B, D), with all attributesdeclared as not…

A: While creating a database, if there is some column where it is mandatory to feed in data that is we…

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: So SQL does not suppor functional depency constraints. However, if the database system supports…

A: Step1:Functional dependency is a constraint the relationship between attributes in a relation.…

Q: dentify the set of functional dependencies in the relation instance CAR shown n

A: Actually, data base is used to stores the data.

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

A: Example: A relational schema R with set of functional dependencies is considered: The relational…

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: 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 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), 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 a relation with schema R(A,B,C,D,E,F,G). Choose the key for the relation for the following…

A: According to the question we need to consider a relationship with schema R(A, B, C, D, E, F, G).…

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: Let R(A, B, C, D) be a relation with FD's: A → B, C → D, AD → C, and BC → A. If we decompose R into…

A: Answer to the above question is in step2.

Q: Give six important properties of relations.

A: To be determine: Give six important properties of relations.

Q: A database of application of wholesaler can be modelled by means of the relations price, in_stock…

A: Algebraic Expresions

Q: A(n) occurs if a nonkey attribute determines another nonkey attribute composite key a O insertion…

A: To find- What occurs if a non key attribute determines another non key attribute. Non-key Attribute…

Q: Consider the following lattice structure of generalization and specialization (attributes not…

A: Given: Consider the following lattice structure of generalization and specialization (attributes…

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: 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: mmar rule of  exp ->exp / exp | num | num.num for the expression 7/4/3.0 Describe the two passes…

A: Draw dependency graphs corresponding to  grammar rule of  exp ->exp / exp | num | num.num for the…