Given a relational schema, R(A, B, C), and set of functional dependencies over R, F = {A → B, AB → C}. prove or disprove the following statements. (a) A is a superkey for R. (b) A is a minimal key for R. (c) Let K be a minimal key for R. Then KU{A} is a superkey for R.

Q: Let R(ABCDEFG) be a relation and F={A -> C, A-> D, B->F, E->F, F->G} a. Show example of lossless…

A: According to the information given:- We have R(ABCDEFG) F={A -> C, A-> D, B->F, E->F,…

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: Suppose ρ is the relation defined on P({1, 2, 3}) in which, for A, B ∈ P({1, 2, 3}), AρB means "A…

A: Given: P({1, 2, 3}) A, B ∈ P({1, 2, 3}) AρB means "A and B both have exactly 2 elements."  ρ is…

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: 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 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: 3. Meaning of FD Consider R= (ABCDE), F = {A>BC, CD→E, B→ D, E → A}. Assume the domains of all…

A: Given,  R = (ABCDE) A→BC CD→E B→D E→A The domain of all attributes are integers

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 the schema R=ABCDEG and the set of functional dependencies F={BC→AG, BG→CD, C→AE, D→AG} 2a)…

A: To address each part of your question:2a) Determine the keys of the schema:To find the keys of the…

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 F = {BC -> D, B -> E, CE -> D, E -> CA, BF -> G} and R(A,B,C,D,E,F,G) 5. Find a 3NF…

A: The given Functional depenency are :  F = {BC -> D, B -> E, CE -> D, E -> CA, BF ->…

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

A: In database management, a functional dependency is a relationship between two or more attributes or…

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

A: a) Candidate Key : Minimal set of attributes used to differentiate every record of the table is…