Describe data relationships, draw an entityrelationship diagram, define cardinality, and use cardinality notation

Q: Direction: Based on the given entities, make an Entity Relationship Diagram (ERD). Put attributes (…

A: Entity-relationship diagram(ER) is used to determine the relationship between two entities in a…

Q: Create Hotel ER Diagram. Include 8 Entities (Guest, Employees, Room, Reservation, etc....) Show…

A: Lets see the solution.

Q: Draw an ERD of Store Management System(Retail Store). Properly mention the entities, identify the…

A:

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

A: Answer:

Q: Draw an ERD (Entity relationship diagram) for the supermarket Make sure you identify all the…

A: Entity Relationship diagram contains mainly 3 components. That are entities, attributes and…

Q: . Create a data model from the below and ensure it show:    a.) Attributes    b.) Entities    c.)…

A: Summary :- We got our result.

Q: Modify the Er diagram given below and add 5 to 6 more additions to it such as entities attributes…

A: RE DIAGRAM for college management system

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: What is the definition of an Entity set?

A: Answer An entity set is a logical container for instances of an entity type and instances of any…

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: is a term used to measure the number of relationships between an entity and other entities. O…

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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: Multiplicity is the same as what concept for an ERD? a. Relationship b. Attribute c. Entity d.…

A: multiplicity constraint represents for a relationship type. It represents the number (or range) of…

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: 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: E-R model is an acronym for this. Encircle the correct choice. a. Entity reference model b. Event…

A: According to the information given:- We have to choose the correct option to satisfy the statement

Q: What is The Compressed form of Entity Relationship Diagram in Database?

A: This question wants compressed form of a term in database.

Q: Given the ER diagram above, answer the following questions: Name an entity type that has more than…

A: a)Department is an example of entity having more than one relation. b)Departmentname is a key…

Q: Explain the terms: Entity Attribute Types of relationship Cardinality  Optionality. I NEED…

A: Entity: - Any existing real word object is an entity in the Database. Each entity has attributes,…

Q: Using the Entity Relationship Diagram you have created, create the tables and insert the values…

A: Below are the create and insert queries:

Q: is the relationship between a weak entity type and its owner. Select one: a. associative entity b.…

A: Identifying relationship is the relationship between a weak entity type and its owner.

Q: Q1/ Draw ER diagram representing entity sets and relationship set described below, also determine…

A: Given entity set: Entity name: Employee Attributes: ID, name, title, salary Entity name: Department…

Q: Relationship Diagrams and Dataflow Diagrams.

A: S.No. DFD ERD 1. It stands for Data Flow Diagram. It stands for Entity Relationship Diagram or…

Q: Define the term attribute and give examples for the entity you described in question 4.7.

A: An attribute is a specification that defines a property of an object, element, or file. It may also…

Q: Create an Entity Relationship Model

A: ER Diagram:

Q: Using the use case diagram draw a Rich Picture and  Entity Relationship Diagram.

A: Solution: An Entity-Relationship (ER) Diagram is a form of flowchart that shows how "entities"…

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: Multiplicity is the same as what concept for an ERD? a. Relationship b. Attribute c. Entity d.…

A: Please see the next step for solution

Q: • Each waiter has a date when they started serving. • Each waiter is also assigned many reservations…

A: The given problem is related to designing the database where the system description is provided. The…

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: QI/ Draw ER diagram representing entity sets and relationship set described below, also determine…

A: Here the entity we have are Employee Department The relationship works_in is a one to many…

Q: Use an appropriate example to explain Entity Relationship Diagram.

A: Entity Relationship Diagram Entity–relationship diagram describes a structure of the database with…

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: You must analyze the entities identified including the bridges: • Entity name • Entity description…

A: entity name:class level description:the class level entity acts as a base class for the classes…

Q: Create entities in a University case study and mention attributes of each entity

A: An entity in DBMS can be a real-world object, it can be a living thing and a non-living thing.…

Q: Give some specific guidelines for defining entity types?

A: Given: Give some specific guidelines for defining entity types?

Q: Define an entity-relationship model and describe its purpos

A: Actually, the answer has given below:…

Q: Relationship Analysis • Relationship name: PARENT ENTITY relationship name CHILD_ENTITY (the name is…

A: Answer:

Q: Let's do this! ACTIVITY 1: DEFINITION OF TERMS Based on the discussion, define and describe the…

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Q: Relationship Analysis • Relationship name: PARENT_ENTITY relationship name CHILD ENTITY (the name is…

A: Two entities are mentioned for the relationship analysis: PARENT_ENTITY and CHILD_ENTITY The…

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: 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: a. Identify all entities and attributes for each entity from the Sales Form in Figure 1. Provide…

A: The given problem is related to database where a form of sale is given and the requirement is to…

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.