Now start with these functional dependencies: АВ > Е C → D F → GH FG → GH В > FG Find a minimal covering of these functional dependencies. Then use it to synthesize a set of dependency preserving, 3NF relations with a lossless join. I.e. use algorithm 11.4 from the text book.

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: 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: 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: Make a hybrid merge-join variant that works in scenarios where neither relation is physically sorted…

A: Introduction: Merge join and hybrid merge join are different. Before utilising merge join, we sorted…

Q: Let R be a relation on A = {0, 2, 3, 7} and R = {(7,7), (3, 3), (0, 2), (2, 0), (2, 2), (0, 0)}. Are…

A: SOLUTION- Given, A ={0,2,37} and R={(7,7),(3,3),(0,2),(2,0),(2,2),(0,0)} 1)True  A  relation R…

Q: How do we calculate a functional dependence closure?  Which of the following give a good example of…

A: List all the funtional dependency present in the relation. Find the unidentified functional…

Q: define functions

A: Given :- In the above given question, the statement is mention in the above given question   Need to…

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 the set of F of the following functional dependencies on relation R(A, B, C, D, E): AB C…

A:

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: Consider the relation R(S, N, R, C, J, H, L) and its set of dependencies F = {S, N -> C ; J, H, C ->…

A: using Armstrong's axioms=> proved in figure figure 1:

Q: Given: Relation R = {(a,c), (b,c), (c,c)} and Set S = {a, b, c} %3D Complete Relation R to be…

A: Given: To make the relation R symmetric.

Q: Make a hybrid merge-join variant that works in scenarios where neither relation is physically sorted…

A: Introduction: Merge join and hybrid merge join are different. Before utilising merge join, we sorted…

Q: DBMS

A: According to our policy we solve first one only. ============================== About BCNF: the…

Q: Suppose user AA, who has all authorizations on a relation rr, grants select on relation rr to public…

A: No, granting select on relation rr to public with grant option by user AA and then granting select…

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

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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…

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Q: We studied different properties of relations like reflexive, symmetric, antisymmetric, transitive.…

A: Lets see the solution in the next steps

Q: ind a minimal covering of these functional dependencies. Then use it to synthesize a set of…

A:

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: Let R be a relation on A = (0, 1,7,9). If (7,9) ER, what must NOT be an element of R for R to be…

A: Let R be a relation on A = {0, 1,7,9). If (7,9) ER, what must NOT be an element of R for R to be…

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…

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Q: ! A Relation R (X, Y, Z, S, T) with functional dependencies F(X YZ; ZS T;Y-SB T-X). A. Find F" for…

A: We are given a relation R with their functional dependencies. First we are going to find out their…

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: We have the following relation: Subscriptions(ID, startingdate, length, customerID, customerName,…

A:

Q: Given the relation R (A, B, C, D, E) and the following set of functional dependencies: F = {ABC,…

A:

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: From the given set of functional dependencies,determine that there can be more than one canonical…

A: Functional dependency is a relationship that is shown between two or more attributes of a table.…

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: 3. Consider the following set F of functional dependencies on R = ABCDEG. F = {A-> BCD, BC -> DE,…

A: To compute B+, we need to find all attributes that are functionally dependent on B through the given…

Q: Can renaming be pushed through join and selection—that is, which of the following algebraic laws…

A: SUMMARY: -   Hence we discussed all the points.

Q: Consider F = {BC -> D, B -> E, CE -> D, E -> CA, BF -> G} and R(A,B,C,D,E,F,G) 8.Apply the lossless…

A: Decomposition of a relation is done when a relation in relational model is not in appropriate normal…

Q: Which of these FDs hold on the

A: Functional dependency: The columns of a relational table are functionally dependent on another…

Q: plt all the terminal in code. Output requirements.

A: The code provided includes two classes: Check and CheckDemo. Check class: This class defines a check…

Q: Let A = {a, b, c} Define a relation as follows: ARA = {(a, b), (a, c), (b, c)} To obtain the…

A: A relation R is reflexive if and only if (a, a) ∈ R , ∀a ∈ A   Here,  A = {a, b, c}   Therefore, (a,…