What does cardinality represent in an entity-relationship diagram? 1:The uniquely identifiable element about which data is stored 2:The maximum number of entity instances in a relationship 3:The total number of primary keys in an entity 4:The total number of attributes in an entity

Q: The four data model basic building blocks include: Entity, Attribute, Relationship and Constraint.…

A: The  data model basic building blocks for the given scenario are Entity- User and Account are the…

Q: n an entity-relationship diagram, what does cardinality mean? 1:The data is saved concerning a…

A: Answer:

Q: What does cardinality indicate in an entity-relationship diagram? 1:The unique identification for…

A: Introduction: This question is about the unique identifier for which data is stored. The…

Q: Discuss the meaning of Relationship Cardinality and using examples briefly describe the three main…

A: The three main type of relationship cardinality is One to many One to one Many to many

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: FIGURE The ERD for Questions 17-20 Q4.17 ORDER ORDER LINE PRODUCT STORE places contains is written…

A: 17) The cardinalities are indicated in below:-

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: Please answer the questions based on the following Entity-Relationship diagram (5 points each): 1.…

A: Attribute• An entity type E (or a relationship type R) has attributesrepresenting the structural…

Q: company provides catering services for clients who need special-occasion, celebratory dinners. For…

A: Actually, given information: A company provides catering services for clients who need…

Q: 17.How are nary relationships associated with entity types? 1:They are different entity types.…

A: Step 1; The answer is given in the below step Introduction: Kinship is a substantial part of any…

Q: Draw the Entity Relationship Diagram (ERD) as explained below.  Be sure to show cardinality in both…

A: Lets see the solution.

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: Which of the following refers to the association between the instances of one or more entity types…

A: Explanation:   Relationship- An association between the instances of one or more entity types that…

Q: Contrast among the following Entity type ;Entity Instance Primary key; Composite key

A: Part(1) Following are the differences between entity type and entity instance: The entity type is…

Q: entity Attribute and primary key, also draw Entity diagram?

A: I have answered this question in step 2.

Q: Given the ER diagram to the right, which entity types deserve to stay entity types and which ones…

A: Given the ER diagram to the right, which entity types deserve to stay entity types and which ones…

Q: A entity instance of one type related to exactly one-entity instance of another type is------? Many…

A: A entity instance of one type related to exactly one-entity instance of another type is------?…

Q: For a weak entity A(partial key P1) in an identifying relationship with entity E (primary key P2),…

A: In a relational database, a weak entity is an entity that cannot be uniquely identified by its…

Q: Summarise the ERM's components, and names the entities and their relationship (As given in the…

A: ER Diagram :

Q: The degree of a relationship indicates Group of answer choices the number of entities participating…

A: The number of entities participating in the relationship is called degree of a relationship. A…

Q: 1. i).To represent one entity that is a specific type of another entity we use…..? a.Relationships…

A: 1. i). The correct answer to this question is option a. Relationships Explanation: - Any…

Q: Draw an entity relationship diagram ERD using unified modelling language UML nation according to the…

A: Lets see the solution.

Q: DRAW AN ER DIAGRAM , Create a many-to-many unary relationship. Include at least one of each type of…

A:

Q: . Refer to this entity-relationship diagram. How does this diagram depict a unattractive…

A: The solution is as follows

Q: What is the term used to describe a non-key attribute in one entity that points to the primary key…

A: This is used to establish relation between two tables

Q: A company provides catering services for clients who need special occasion celebrating dinners. For…

A: Actually, given information: A company provides catering services for clients who need special…

Q: uRR-id phone SUPP. EMP-DEP SUPPLIER EROJPART composing DEPENDANT COMPONENT PART compoted-of type…

A: Given E-R diagram Strong entity is represented by single rectangle. Two strong entity’s relationship…

Q: 1. List down the types of attributes in the Entity-Relationship (ER) model.

A: Given: 1. List down the types of attributes in the Entity-Relationship (ER) model.

Q: C1. “Nomadic Desert Camp, Oman" requires an Information System to maintain the details of the…

A:

Q: Identify Entity Types Entity Name Entity Aliases Entity Description Occurrence Identify Relationship…

A: Entity name Entity Description Entity Aliases Occurrence PRODUCT_ID(PK) Product ID INT 60…

Q: 4.1 Define the term entity and give an example other than those used in this book. 4.3 Explain the…

A:

Q: Create an ER Diagram for an Bank. Identify atleast 5 entity in the ER Diagram Identify atleast one…

A: Answer: Given at least 5 Entity , one weak entity ,at least three attribute for each entity and…

Q: Explain the relationship in the below Entity Relationship Diagram (ERD) in your own words.

A: Below is the explanation of ER diagram:

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: (1) Draw the Relational Schema for the relationship(s) between STORE and REGION.

A: As per our guidelines, we are supposed to answer only first three parts of a question. Kindly repost…

Q: Q.No.1 Analyze the given entity relationship diagram and answer the following questions. P Id Name…

A: ER Diagram: An entity–relationship model (ER model) uses a diagram called an Entity Relationship…

Q: What is the Entity-Relationship Model and what is its purpose?

A: What is the Entity-Relationship Model  what is its purpose? ER model stands for Entity Relationship…

Q: an you make an eerd(enhanced entity relationship diagram) that consist  you aggregation,…

A: Lets see the solution.

Q: C1. “Nomadic Desert Camp, Oman" requires an Information System to maintain the details of the…

A: 1) A Customer can book 1 or more amusements.  2) There are different types of amusements available…

Q: Draw an Entity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation  according…

A: The solution is :

Q: Answer these questions please. 1-Draw the Relational Schema for the relationship(s) between STORE…

A: ANSWER:-

Q: b. Consider the below Enhanced Entity relationship diagram and answer the following questions.…

A: In this question, from the given enhanced entity relationship diagram, we are going to identify…

Q: Draw an Entity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation according…

A: Entity relationship diagram: An ER diagram is a visual representation of the entities and their…

Q: is a piece of information used to describe an entity. a. Attribute b. Associative Entity Cardinality…

A: Answering 4 and 5.  According to the policies I can't solve multiple questions in one question…

Q: Using er assistant create an Entity Relationship Diagram(ERD) with appropriate entries, relevant…

A: -> An ER diagram shows the relationship among entity sets. -> In terms of DBMS, an entity is a…

Q: 1. What are multivalued attributes. 2. What's the difference between partial completeness and total…

A: 1. What are multivalued attributes. 2. What's the difference between partial completeness and total…

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.