Define the term entity and give an example other than those used in this book.

Q: List the qualities that you would want to see in an entity identification property.

A: Introduction: One of the potential keys that uniquely defines the properties of an entity type is…

Q: What is an entity relationship model?

A: Please find the answer, detailed explanation and a sample ER diagram in the following steps.

Q: Give an example of the use of effective (or effectivity) dates as attributes of an entity.

A: Effective dates as Attributes of an Entity Effective dates: Effective dates are used to design the…

Q: Explain what the Entity-Relationship model is and what its purpose is

A: Entity Relationship model is a simple diagram which depicts the structure of tables and the…

Q: Define the term ID-dependent entity, and give an example other than one used in this text. Draw an…

A: Note: There are multiple questions are given in one question. According to the rule, you will get…

Q: Analyze the given entity relationship diagram and answer the following questions.   What is the…

A: Part(1) Degree of relationship is basically the number of entities that in general participates in…

Q: The notation (0,N) is attached to entity E1, the notation (2,N) is attached to entity E2. What is…

A: Here (0, N) notation represent that  (MIN, MAX)   relationship . It means E1 entity can have minimum…

Q: Given these business rules, create the Entity Relationship Diagram, include relationships and…

A: Entity-Relationship (ER) diagram:Entity-Relationship (ER) diagram is used to explain the logical…

Q: For each of the below relationships, provide an explanation of what it is and a relevant example.…

A: One - to - many relationship One - to-many is a relationship cardinality in database entities. In…

Q: Distinguish between Data Dictionary and Entity Relationship diagram. Give examples to illustrate…

A: According to the information given:- We have to distinguish between Data dictionary and entity…

Q: Identify the entity ⦁ Identify the entity’s attribute ⦁ Identify the primary and foreign Keys ⦁…

A: Entities: Professor Class Course Room Entity Attributes: 1. Professor: Name ProfessorId(Primary…

Q: enhanced entity relationship diagram using the diagram below

A: ERD stands for Entity Relationship Diagram. These types of diagrams are also known as ER diagrams…

Q: Based on Entity Relationship Diagram (ERD) below; a) Write the correct business rules for all…

A: The given problem is related to database entity relationship diagram where the solution will include…

Q: In a few words, describe the logical link between the entities entity, attribute, and relationship.

A: According to the question An entity is a distinguishable actual-international object that exist. An…

Q: Given the information above, draw an EER Diagram showing the following: • Entities, • Attributes, •…

A: According to the given scenario,  There are four entities Hospital, Patient, Doctor, and Records.…

Q: What is entity type?

A: Given: What is entity type?

Q: Create a rule to extract attributes from one entity type and set them in another.

A: GIVEN: Create a rule to extract attributes from one entity type and set them in another.

Q: Design an Entity Relationship Diagram for the following example

A: For given given scenario we can have following  entities and their corresponding attributes :…

Q: Computer Science • Prepare an entity relationship diagram level 2 - Weak Entity, Aggregation, IS-A…

A: Note: As guidelines by bartleby, we can only write text or attach images but we cannot send word…

Q: Describe the entity-relationship model. How are entities, relationships, and attributes represented…

A: Actually, An Entity relationship diagram is a graphical representation a database that describes…

Q: Interpret the different form of Entity used in the given scenario of ER diagram. Illustrate the…

A: Strong entity Account Region Item creep Weak Entity Character Item Instantiation creep…

Q: A simple(Atomic) attribute is Select one: O a. an attribute that can be devided to smaller sub parts…

A: A simple (atomic) attribute is__________?

Q: Draw a complete ER Diagram. Show all entities, attributes, primary keys, foreign keys,…

A:

Q: draw Er model : for the entity( booking,movie show, ticket, user, employee,payment) with the…

A: ER DIAGRAM for given entity is given below we use following entity  booking  Movie show  Ticket…

Q: Draw an Entity Relationship Diagram of Store Management System(Retail Store Database). Properly…

A: table: customer table - C_ID (primary key) bill table - Bill_ID (primary key) employee table - E_ID…

Q: Build an entity-relationship diagram, deriving relations and validating relations using…

A: entity-relationship diagram

Q: Create an Entity Relationship Diagram (ERD) using UML notation after studying the business rules…

A:

Q: The below Entity Relationship Diagram (ERD) is in second normal form. Draw a new ERD in third normal…

A: New ERD in third normal form is an given below :

Q: Define the term relationship and give an example other than those used in this book.

A: Definition of relationship: A relationship is any connection between two types of entities. The…

Q: level title enroll Student Date of birth Sname Snumber address Answer the following questions based…

A: There are Multiple questions,As per our guidelines we are supposed to answer only one question.…

Q: What two conditions must be met before an entity can be classified as a weak entity?Give an example…

A: Lets see the solution.

Q: Create an entity relationship diagram and the relational diagram

A: ANSWER: Entity Relationship Diagram: An entity relationship diagram, otherwise called an entity…

Q: Modify the Er diagram given below and add these Weak entity Identifying relationship Weak…

A: ER Diagram using these  Weak entity Identifying relationship Weak relationship Key attribute…

Q: Explain what the Entity-Relationship model is and how it operates.

A: Introduction: They are also known as the ERDs or ER Models, and they use a preset collection of…

Q: ______ represent real-world associations between entities.       Entities       Attribute…

A: A relationship between two entities signifies that the two entities are associated with each other…

Q: What are entity-relationship diagrams and how are they used? What symbol is used for a relationship?…

A: Explanation: Any real-life object interacting in a business scenario is represented in the form of…

Q: Creation of Entity Relationship Diagram Draw the entity relationship diagram (ERD) for this…

A: Entity Relationship Diagram :- An Entity Relationship Diagram (ERD) is a visual representation of…

Q: Produce an entity relationship diagram of the Grand villa Hotels system described above.

A: According to the information given:- We have to produce ER diagram of the Grand villa Hotels system.

Q: What is the definition of an Entity type?

A: Ans.) Entity type:- A person, organization, object type, or concept about which information is…

Q: Describe what an entity-relationship model is and how it functions in your own words.

A: Given: Real-world entities and their connections inform entity relationship models.  ERM. Entity…

Q: Explain the ambiguity in the definition of the term weak entity. Explain how this book interprets…

A: weak entityA weak entity is defined as an entity that cannot exist in a database unless another type…

Q: Demonstrate your understanding of the Entity-Relationship Model and its function.

A: Introduction: A problem domain's information structure is represented in terms of entities and…

Q: Define the term entity and give an example of an entity (other than the one from this chapter).

A: An entity represents a real-world example. It represents the real-world object.

Q: Using the ERD diagram above, identify an attribute that might represent a Derived Attribute. Once…

A: In a database, the characteristics of the values are known as attributes. In a database, data are…

Q: What does it mean to be a weak entity? Give an illustration.

A: An entity which can only exist when it is owned by another entity is called a weak entity. In terms…

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.