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

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

A: Lets see the solution.

Q: Q4 (Entity-Relationship (ER))

A: The relationship between entities that must be stored in a database is described by an Entity…

Q: In a few words, describe the logical relationship between the entities, attributes, and…

A: Introduction: An entity is a piece of data or a physical object. It is possible to save information…

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: 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: Explain Basic concepts and definitions in relationships?

A: Given: Explain Basic concepts and definitions in relationships?

Q: Describe the Entity-Relationship model.

A: Answer : Entity relation model or E-R model is the graphical representation of an information that…

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: 43. Entity Relationship model consists of collection of basic objects called _________ and…

A: GIVEN: Entity Relationship model consists of collection of basic objects called _________ and…

Q: The entity type STUDENT has the following attributes: Student Name, Address, Phone, Age, Activity,…

A: The entity type STUDENT has the following attributes: Student Name, Address, Phone, Age, Activity,…

Q: Ov

A: The degree of has relationship is two.

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: 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: Explain the Entity-Relationship model and how it works.

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

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

A: Given question has asked to analyze the entity relationship diagram and answer the following…

Q: Give an example of how attributes are used in a relationship model, and what the generic term for an…

A: Entities in the ER model contain characteristics that may be single-valued, multi-valued, composite,…

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: Provide examples of how relationships are represented using attributes and the general term for an…

A: Introduction: Attributes are specifications that describe the properties of an object, element, or…

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: Write down the many kinds of attributes in the Entity-Relationship (ER) model.

A: Given: 1. Make a list of the different kinds of characteristics that are used in the…

Q: Describe the entity-relationship model in detail.

A: Entity relationship models are based on the real-world entities and their relationships.

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: 46. ______________ express the number of entities to which another entity can be associated via a…

A: Here is the solution which is mentioned below:

Q: Explain Entity Relationship Diagram with a suitable example.

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

Q: Concisely define each of the following keydata-modeling terms: conceptual data…

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

Q: Define when an attribute from one entity type should be extracted and inserted into another

A: The answer is

Q: Many to many relationships (a non spcific relationship) are resolved into a pair of one-to-many…

A: Many to many relationships (a non spcific relationship) are resolved into a pair of one-to-many…

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: give a background for the Entity Relationship theory and the Guidelines for refining an Entity…

A: The question has been answered in step2

Q: Review the data model provided in the case study. (1) List all entities and its type

A: Below i have answered:

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

A: Foundation This question was taken from the Database Management System paper that was given in the…

Q: Define and describe an entity-relationship model.

A: Entity relationship models are based on the real-world entities and their relationships.

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

A: Actually, the answer has given below:…

Q: If you are reading a flat file, with minimal information regarding business rules and constraints.…

A: Solution:Even though the file contains minimal information about business rules and constraints,…

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

A:

Q: ame the THREE (3) components that are considered to be part of any omment on the extent to which the…

A: Lets see the solution.

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

A: ANSWER:-

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: 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.

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.