For the relation R(A,B,C,D,E) with the following Functional Dependencies: A → B, A → C, BC...

For the relation R(A,B,C,D,E) with the following Functional Dependencies:

A → B, A → C, BC → D, AC → E, CE → A,

list all non-trivial FDs following from the above.
Generate all possible keys for R.
Check whether R is in 3NF. If it is in 3NF, explain the criteria you used. If it is not in 3NF, convert it into 3NF, showing the new relations and their FDs.

Expert Solution

venereology answered 1 year ago

Consider the following relation R(A, B, C, D, E, G) and the set of functional dependencies...

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=>Set of functional dependencies(F) = {A -> BC, BC -> AD, D -> E} =>Set of...

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Let R be the relation on Q defined by a/b R c/d iff ad=bc. Show that...

Let R be the relation on Q defined by a/b R c/d iff ad=bc. Show that R is an equivalence relation. Describe the elements of the equivalence class of 2/3.

Consider a relation R (ABCDEFGH) with the following functional dependencies: ACD --> EF AG --> A...

Consider a relation R (ABCDEFGH) with the following functional dependencies: ACD --> EF AG --> A B --> CFH D --> C DF --> G F --> C F --> D Find minimal cover and identify all possible candidate keys. In order to receive full credit, please list each step taken and the rules that you applied.

Consider the relation R= {A, B, C, D, E, F, G, H} and the set of...

Consider the relation R= {A, B, C, D, E, F, G, H} and the set of functional dependencies: FD= {{B}—> {A}, {G}—> {D, H}, {C, H}—> {E}, {B, D}—> {F}, {D}—>{C}, {C}—> {G}} 1) Draw FD using the diagrammatic notation. 2) What are all candidate keys for R? 3) If delete {C}—>{G} and change {C, H}—> {E} to {C, H}—> {E, G}, what are all candidate keys for R

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Normalization: Answer all 4 questions. You are given the following relation R and some functional dependencies....

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Let R be the relation on Z+× Z+ such that (a, b) R (c, d) if...

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Consider the cross: A/a; b/b; C/c; D/d; E/e x A/a; B/b; c/c; D/d; e/e a) what...

Consider the cross: A/a; b/b; C/c; D/d; E/e x A/a; B/b; c/c; D/d; e/e a) what proportion of the progeny will phenotypically resemble the first parent? b) what proportion of the progeny will genotypically resemble neither parent?

Normalize the following data by: a) identifying the functional dependencies, b) stating your assumptions, \ c)...

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