Explain how functional dependencies may be used to indicate: • The entity sets student and teacher have a one-to-one relationship set. • Between entity setsstudent and teacher, there is a many-to-one connection set.

Q: nctional dep

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

Q: Here's a relation (R), its attributes and its functional dependencies (F): R(A, B, C, D, E, F, G)…

A: Given functional dependencies: BC -> DG CD -> F FG -> A 1. Closure of {ACD}+ is: {ACD}+ =…

Q: Question 6 In order to make it easier to compare the relation scheme diagram to the UML diagram, we…

A: In order to make it easier to compare the relation scheme diagram to the UML diagram, we (check all…

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A: Ternery relationship is one which involves 3 distinct entitiesBinary relationship is one which…

Q: Is it true that associative entities are likewise considered to be weak entities? What is your…

A: Introduction: An associated entity is one that is placed between two other entities to break up a…

Q: What is the function of a ModelGen operator?   A It identifies fundamental conflicts and devises…

A: The ModelGen operator is a concept used in computer science, specifically in the field of data…

Q: Take a database, having FDs as: DOB->Age; Age->Eligibility; Name->RollNo; RollNo->Name;…

A: Here, we are going to find out the normal form for  the relation (RollNo, Name, DOB, Age). First we…

Q: An ID-dependent Weak Entity typically result in a table with a compound primary key with at least…

A: A weak entity in a relational database is one that can't be uniquely identified by just its…

Q: Every SuperKey is a key but not vice versa True False In Relational database modeling, any complex…

A: Relational database modeling is a fundamental aspect of database management systems, focusing on the…

Q: What is the functional relationship between the main key and a non-key attribute as explained by…

A: The connection between any two characteristics is known as functional dependency. For example, there…

Q: Is it accurate that associative entities are also regarded as weak entities? What justification or…

A: Associated thing: • The connection between entity instances provides more detailed properties. • An…

Q: Given the relations CLASS(ClassID, Cycle, T'eachinghours) and STUDENT(StudentID, ClassID, StudName).…

A: Concept used:- master child relationship using primary key and foreign key.

Q: uct a context and data flow diagram level-0 supporting the logical design/implementation of the…

A: Lets see the solution.

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A: Given: Explain (with an example) the advantages of utilising exponent bias versus dedicated sign…

Q: Random Hospital Example ERD Problem Follow the Simple Procedure for ERD diagramming to design an…

A: ans given below

Q: What exactly is the difference between a weak entity and one that needs communication to function…

A: find your answer below

Q: Give an example of how one non-key property depends on another non-key attribute to function?

A: I have answered this question in step 2.

Q: Given the relations CLASS(ClassID, Cycle, Teachinghours) and STUDENT(StudentID, ClassID, StudName).…

A: Answer:- Option-(A)-A class must have at least a student.

Q: Examine the following entity relationship diagram, and select all statements that correctly describe…

A: Primary Key is used to uniquely identify a column Foreign Key derives its data from primary key of…

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

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

Q: Design an EER diagram for a library as described below. Show relevant constraints.  a. Each…

A: The EER (Enhanced Entity-Relationship) diagram presented here depicts the design of a library…

Q: 2- Design a class diagram of a course registration system. Note: utilize various class relations:…

A: Answer

Q: Design a class diagram of a course registration system. Note: utilize various class relations:…

A: A class diagram of a course registration system.

Q: A candidate key is a characteristic possessed by a composite primary key. What is your response to…

A: The statement you provided is not accurate. A candidate key and a composite primary key are…

Q: Normalization: elational schema and FR corresponding set of functio R = ABCDE FR = {AC, BD, C → A}

A: Tables are arranged using the normalization method in the database architecture to reduce data…

Q: When is it necessary to represent a many-to-many connection using an associative entity?

A: Associative entity modeling A connection that has been turned into an entity with characteristics is…

Q: When one object has the primary key of another entity as an attribute, a Parent-Child relationship…

A: Many to numerous relationship: A many-to-many connection exists when numerous (more than one)…

Q: ER-diagrams are high-level design of the Database. The given ER-diagram describes the Dentist…

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

Q: 6. Every aggregation relationship is an association True False

A: We have to verify the statement given about the aggregation and association. Statement: Every…

Q: Regular entity type is transformed to a relation.

A: To be determine: Regular entity type is transformed to a relation.

Q: defines a relationship between two entities in which each instance of data in one entity is…

A: Introduction: Entities are real-world objects with attributes that are stored in a database. Tables…

Q: Write the relation matrix for the relation R on the set (a,b.c.d,e.f) which is defined as follows:…

A: Relation Matrix: Any relation can be represent using the matrix representation. The matrix contain…

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

A: To strengthen a weak entity set, we need to add primary key attributes that will uniquely identify…

Q: The disjoint rule specifies that if an entity instance of the supertype is a member of one subtype,…

A: The question is to find the given statement is true or false.

Q: spill the beans on the contrast between a weak and a strong entity set

A: The question asks for a brief explanation of the difference between a weak and a strong entity set.

Q: Following relation schema exists : EMPLOYEE (EMP_ID, EMP_NAME, DEPT, GRADE, SALARY, AGE, ADDRESS).…

A: Answer: Given  EMPLOYEE (EMP_ID, EMP_NAME, DEPT, GRADE, SALARY, AGE, ADDRESS). Functional dependency…

Q: draw the er diagram and label

A: To create an ER diagram based on the provided scenario for reserving baseball tickets, here's a…

Q: Break down the concept of inherited attributes and how they work in the context of interconnected…

A: Please refer to the following step for the complete solution to the problem above.

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.