Describe how functional dependencies may be used to show: • There is a many-to-one connection set between the entity sets student and instructor, as well as a one-to-one relationship set between the two.

Q: nctional dep

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

Q: Establish the IoT reference model and explain it. The reference model has four distinct degrees of…

A: The Internet of Things (IoT) is a rapidly growing network of interconnected devices that communicate…

Q: Discuss the classification of traceability relations elicit brief an example that defines the…

A: traceability relations :- the degree to which a relationship can be established between two or more…

Q: ake a diagram or figures that shows high cohesion and loose coupling

A:

Q: Diagramming is a "top down" user process.  Take the following user provided information and draw the…

A: the diagram is an given below :

Q: Primary key of this relation is AB. What is the normal form of this relation given the following…

A: Given all attributes are atomic, hence it is in first normal form.   Primary Key is AB. So prime…

Q: course has a code, course name, credits, and an instructor. Each course uses a textbook. • A…

A: ER diagram is an abbreviation for Entity Relationship Diagram. An ER diagram represents the…

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: 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: Create an Entity-Relationship Model to represent the data requirements of the problem given below.…

A: ERD for the given requirement: No of Entities: Person entity Employee Alumnus Student Staff Faculty…

Q: What does the Weak Entity set entail?

A: Introduction: It is necessary to utilize a foreign key in conjunction with an attribute to establish…

Q: A weak entity set may be turned to a strong entity set by adding the primary-key attributes of its…

A: Introduction: Adding the major key features of an identifying entity set to the attributes of an…

Q: Assume that there are two entity sets A and B, both of which possess the property X. (among others…

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

Q: Consider the following E/R diagram with isa relationships, in which every node represents an entity…

A: Here I am explaining this with an example. For this example I filled up the blank entities with some…

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: 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: You are free to make reasonable assumptions for your model unless they conflict with the definition…

A: Here is the er diagram The entites are Hospital, doctor , department, appointment, patient,room One…

Q: Diagram into a col y of the constraints as possible. ote: Courses is a weak entity set, and Number…

A: the relational schema is given below

Q: Distinguish between the ways in which functional dependencies may be utilized to express the…

A: Identifying the functional dependencies entails the following steps: The functional dependencies may…

Q: Talk about what weak and strong entity sets are.

A: Entity sets are used to model real-world objects or concepts within an organization's domain. There…

Q: Construct an (E)ER diagram for a hospital system with the following requirements: Patients…

A: The hospital system described below is a database system designed to manage information about…

Q: -xactly is that??

A: Solution - In the given question, we have to define the given terms.

Q: Create an Entity-Relationship Model to represent the data requirements of the problem given below.…

A: ERD for the given requirement: No of Entities: Person entity Employee Alumnus Student Staff Faculty…

Q: A person can be an employee, alumnus, or a student. For a person, P_id (identifier), date of birth,…

A: ERD for the given requirement: No of Entities: Person entity Employee Alumnus Student Staff Faculty…

Q: What is best way to represent specialization/generalization hierachy if the participation and…

A: The question is on finding the best way to represent specialization/generalization hierachy if the…

Q: Describe how the weak entity of an E-R diagram is transformed into relations

A: E-R (Entity Relationship) diagrams: An entity-relationship diagram is an image or snapshot of the…

Q: What is best way to represent specialization/generalization hierachy if the participation and…

A: What is best way to represent specialization/generalization hierarchy if the participation and…

Q: Describe how functional dependencies may be used to show: • There is a many-to-one connection set…

A: Recognizing functional dependencies: The functional dependencies may be used to identify the…

Q: Create a diagram with one entity set, P erson, with one identifying attribute, Name. For the P erson…

A: An Entity is a component of data, mostly it forms table name in database. Attributes describes…

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.