A R E (a) (b) A (c) Figure 6.29 Representation of a ternary relationship using binary relationships.

Q: nctional dep

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

Q: Give some instances of relationships that may have more than one candidate key to consider.

A: Answer for the given question -   Candidate key: A candidate key is recognized as a "set of…

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A: The functional dependency possible are a -> b, d d -> e, f Here if we take closure of a, that…

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Q: Consider the representation of the ternary relationship of Figure 6.29a usingthe binary…

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Q: Correct and detailed answer. I will Upvote. Thank you   An Association Rule is an implication…

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Q: With a simple example, explain aproximiation and how it may be accomplished using a fuzzy relation

A: Fuzzy relation:

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

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Q: Give an example of a real-world scenario where data binding is particularly useful.

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A: The pharmacy chain "Recipes Rayos X" requires a structured system to maintain and manage their…

Q: What's the difference between weak and strong entity sets?

A: What's the difference between weak and strong entity sets?

Q: Show how to represent a 1:N recursive relationship in your answer to question 5.29. How does this…

A: Given: Show how to represent a 1:N recursive relationship in your answer to question 5.29. How…

Q: Problem 8- 10 use the same database. Let a database application have the following entities Sales…

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Q: Any weak entity set can be turned into a strong entity set by just adding the right properties. So,…

A: Your answer is given below.

Q: Consider the schemas for the table people, and the tables students and teachers, which were created…

A: Given: Consider the schemas for the table people, and the tables students and teachers, which were…

Q: The relations from Exercise 3 are:  a. (1,1), (1,3), (2,2), (3,1), (3,3) b. (1,2), (2,2), (3,2)…

A: - We need to create directed graphs from the list provided.

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A: Introduction: Let's say we have a connection that was produced from a many-to-one relationship and…

Q: oximiation, and how can it be performed using fuzzy rel

A: Introduction: Below describe the approximation and how can it be performed using fuzzy relation?

Q: Assume that we have four relations R(A, B), S(A,C), T(A,D) and U(A, E) and the size (i.e., the…

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A: Weak entities are represented with double rectangular box in the ER Diagram      office, supplier,…

Q: Consider the relation employee(name, supervisorName, sex) with name as the primary key.…

A:

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

A:

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Q: Question 9: The maximum number of superkeys for the relation schema R(E,F,G,H) with E as the key is…

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Q: Strongen a weak entity set by adding primary key attributes. Please explain our choice's overlap.

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A: the solution is an given below :

Q: Q1. Let set A= {4, 8, 12, 16). Following are the relations defined on A x A: R1= {(4,4),(8,8),…

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Q: For a given relationship set, R = {A, B, C, D, E, F} and FD : A->B, C->D, E->F . Calculate F+ of A,…

A: Closure of an Attribute: A set of attributes that can be functionally derived from an attribute is…

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

A:

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A: Introduction: Relationship of equivalents A relation of equivalence on a set S is defined as one…

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A: σθ (E1 ⟕E2) and E1 ⟕σθ(E2) are NOT equivalent because the order of applying the selection operation…

Q: Question 2. Let there be relation R(A, B, C, D, E) with FD set: {A → BC, C possible? D, D → A}. How…

A: total number of super key is :: 8   solution provided in step2

Q: id name supervisor A John Joyce Jim Jennifer Peter D null E C E Write an SQL statement to list any…

A: We can achieve the desired result by doing self join of the Employee table

Q: can be converted to a strong entity set by simply adding the appropriate attributes. Why,

A: For the following reasons, a weak entity set is required:

Q: SELECT AVG(EC. Num) FROM EC WHERE (DeptName, Num)IN (SELECT DeptName, COUNT(Empld) AS EC(DeptName,…

A: The following query results the

Q: Suppose we have table T with fields A, B, C, and D, with FD A→ C. Decomposing to BCNF would give…

A: Option (a) T1: A, B, C and T2: B, D violates the BCNF as attribute B is not a candidate key and it…

Q: relation

A: Given :-   Let there be a relation R (A, B, C, D, E) with FD (i.e. functional dependency) set , FD…