A attribute is an entity feature or resource. If the individual is an object, can the same characteristics be used to identify a person who stores medical, student and exercise club data in various databases? Why or why not?

Q: In a database, an entity is a collection of characteristics. An entity might be a tangible thing…

A: Given database is Company's employment details, which contains entities individual, department and…

Q: An attribute is a descript­ive property of an entity.

A: An entity is a “thing” or “object” in the real world that is distinguishable from all other objects.…

Q: Create an enhanced entity-relationship with ERD below, complete with PARTICIPATION and DISJOINT…

A: Enhanced ER model: (EER) diagrams are advanced versions of ER diagram.It is used in designing…

Q: An attribute is a property that describes the nature of an entity.

A: In the are actual world, an entity is a "thing" or "object" that can be distinguished from all other…

Q: Let's say that in addition to being a component of the primary key, an attribute is also a candidate…

A: Given: What do you respond if someone suggests that an attribute which is a component of a composite…

Q: When working with database entity relationship modeling, should the cardinality between entities be…

A: Cardinality: The maximum or minimum number of elements allowed on each side of the relationship in…

Q: Describe the difference between simple attributes and composite attributes. Justify the need for…

A: INTRODUCTION: Here we need to tell the difference between simple attributes and composite attributes…

Q: Fill in the blank:  A ____________________ is a structured collection of related data stored on a…

A: Database: Database, any collection of data or information, that is specially organized for rapid…

Q: Discuss the concept that an attribute that is part of a composite primary key is also a candidate…

A: A candidate key is a single field or a composite expression that meets the requirements of a primary…

Q: Single-valued characteristics have one value, whereas multivalued attributes have many.

A: This classification is based on the attribute's ability to take multiple values. A multi-valued…

Q: Entity-Relationship Diagram (ERD) is one of the data modeling tools that provides a software…

A:

Q: QUESTION 24 Click the box next to the multivalued attribute(s) in this conceptual diagram. Вотower…

A: Answer :-- option 5) phoneNumber.

Q: When an entity has the primary key of another entity as an attribute, this creates: A Parent-Child…

A: Many to many relationship: - When various(more than one) records in one table are linked to various…

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

A: In the ERD diagram above, Create_Date_d of type date can be represented as Composite Attribute.…

Q: What is the relationship between the main key and a non-key attribute, based on the information…

A: Given: The term "functional dependence" refers to the relationship between two features. A…

Q: Give an illustration of what a Key Attribute is.

A: An key attribute that is part of a key or is the whole key.

Q: ER-diagrams are high-level design of the Database. The given ER-diagram describes the Dentist…

A: Weak entities are represented with double rectangular box in the ER Diagram      office, supplier,…

Q: Design a database for an airline. The database must keep track of customers and their reservations,…

A: Objective: An entity-relationship diagram should be designed to maintain a database for an airline.…

Q: Explain Single-vAlued verSuS MultivAlued AttriButeS?

A: An attribute is considered single-valued if there is at most one value associated with it at any one…

Q: In the information realm, how do entities become described?

A: Information Realm: The information realm is a partial and incomplete representation of the universe,…

Q: just answer true/false , fast pls -a]Weak entity is an entity that borrow all of its primary from…

A: Step 1  The answer is given in the below step with an explanation

Q: A variable's "type" and "other attributes" must be identified in order to properly classify it. In…

A: Introduction: If we are talking about programming languages, then a variable is the name given to a…

Q: When an attribute is part of a composite primary key, it's also a candidate key.

A: A candidate key is a field or expression that satisfies the requirements for a primary key. It is a…

Q: What is a Multivalued attribute?

A: To define:- Multivalued attribute:-

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: Q2) Define the Entity Relationship (ER) Technique which is used in database design. Then use ER to…

A: Given: Explain Entity–relationship model (ER model).

Q: The number of entities or instances that can participate in a relationship is called the Select one:…

A: The number of entities or instances that can participate in a relationship is called as Degree of…

Q: difference between single-valued attributes and simple attributes

A: Difference between single-valued attributes and simple attributes A simple attribute refers to an…

Q: Design ER diagram to model the online bookstore’s database, in which there are four entities, namely…

A: Design ER diagram to model the online bookstore’s database, in which there are four entities, namely…

Q: diagram is a graphical representation of an information system, illustrating relationships among…

A: A(n) __________ diagram is a graphical representation of an information system, illustrating…

Q: Q5) Consider a database used to record of persons and each person has name, E-mail, phone numbers,…

A: Entity we have here are Teacher School School can have one or more teacher while a teacher can be…

Q: President 1. Ella Fitzgerald 2. Dog 3. Animal 4. Height 5.

A: A.

Q: What is the definition of an attribute?

A: An entity is a real object which can be identified separately  Example of entity is student,…

Q: What are AttriButeS On relAtiOnShiPS?

A: Here we will discuss the different types of attributes on relationship

Q: Distinguish between a composite key and an attribute that is made up of many components. An ERD…

A: Given:- Compare and contrast what is known as a composite key with what is known as a composite…

Q: In a database, describe the representations of Identifying Relationships, Non-Identifying…

A: INTRODUCTION: Database: It is a collection of data that has been organized for ease of access,…

Q: 13. An unnormalized table means that: a. it has repeating groups. b. it has partial and transitive…

A: Answer: (B) it has partial and transitive dependencies. A connection that contains recurring values…

Q: the the number name the number the birth the Date name name number Phone section Works N the…

A: In this question, we have 4 entities that are Section, the employee, son, and project. Each entity…

Q: Q1/Consider a database used to record of persons and each person has name, age, phone number, and…

A: The ER Diagram that models the person and other entities and also the relationships between them

Q: What is the definition of an entity? a person or thing that exists.

A: INTRODUCTION: Entity: The term "entity" refers to a physical object. It could be an individual, a…

Q: An attribute is a characteristic or resource that is specific to an entity. Is it possible to…

A: In a database table, attributes define the qualities or properties of an object. In a database…

Q: Question 3 Discuss in detailed explanation that the concept that an attribute that is part of a…

A: The concept that an attribute that is part of a composite primary key is also a candidatekey:

Q: An entity student has a derived attribute "age". When mapping ER Diagram to schema, you place…

A: We have an entity 'student' has a derived attribute "age". When mapping ER Diagram to schema, where…

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.