Consider the schema R = (A, B, C, D, E, G) and the set F of functional dependencies:AB → CDB → DDE → BDEG → ABAC → DER is not in BCNF for many reasons, one of which arises from the functionaldependency AB → CD. Explain why AB → CD shows that R is not in BCNFand then use the BCNF decomposition algorithm starting with AB → CD togenerate a BCNF decomposition of R. Once that is done, determine whetheryour result is or is not dependency preserving, and explain your reasoning.

Q: nctional dep

A: Normalization The process of organizing data in a database is known as normalization. Normalization…

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

A: a. To find the candidate keys of R, we need to determine the attribute closure of every subset of…

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: what is the condition of union compatability and show two examples of schema in union compatability

A: Union compatibility  Union compatibility is a condition that must be satisfied when combining data…

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

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: Let R(A,B,C,D,E,F,G) be a relation with the FDs: F= (CDG, DG-C, AD-G, G-A, AB-F). Consider the…

A:

Q: The relation R(A, B, C, D, E) has the following functional dependencies. А, В - С В, С -> D C, D→E…

A: Attached Solution for (a) and (b) part:

Q: DBMS

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

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

A: Instead of using BCNF, it is possible to have a lossless decomposition into 3NF itself. For this, it…

Q: Find a minimal cover in a standard form for the relation schema R(A, B,C, D, E, F, G, H) with the…

A: A minimal cover or canonical cover means a minimum set of functional dependencies. A canonical cover…

Q: Assume you apply a functional dependence in the BCNF decomposition technique to deconstruct a…

A: Intro Assume you apply a functional dependence in the BCNF decomposition technique to deconstruct a…

Q: Give examples of binary 1:N relationships, other than those in this text, for (a) an…

A: Given question has asked to give examples of binary 1:N relationships;      2. a) an…

Q: PQ → TY ii. P → QR iii. QST → R iv. STR → P   From the above functional dependencies, using…

A: Given:- i. PQ → TY ii. P → QR iii. QST → R iv. STR → P   From the above functional dependencies,…

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: 1. If we project the relation R(A,B,C,D,E) with dependencies A→→BC, B→D, and C→→E onto S(A,C,E),…

A: Answer is given below-

Q: . Consider the following relation with set of functional dependencies R(ABCDEF) ABC->D, ABD->E,…

A:

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

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Q: Given a relation schema R = (A, B, C) and its functional dependencies F = {A →B, B→ C). Suppose R is…

A: Answer is given below-

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: Suppose a relation schema R = (A, B, C, D) is decomposed into following relations R1(A,B,C) and…

A: A relation schema R is decomposed into R1 and R2

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A: First of  all , let’s understand what is super key.      Super key : Super key can be defined as  an…

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 :

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A: Answer to the above question is in step2.

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

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A:

Q: Given 5 dimensional parameters A, B, C, D, E, F and the following set S of functional dependencies S…

A: The set of functional dependencies are given as follows-  S={B→A;C→B;F→E;B→F;F→D};   Let us find the…

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Q: {u,d,e,f,w}, y,c,d,e,f}}. -Y,C,d,e

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Q: candidate keys and determine if R0 is in 3NF

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A: Recursion: Recursive views make it possible to write queries , such as transitive closure queries,…