What is an entity supertype and why is it ued?

Q: What is an entity relationship model?

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

Q: Q4 (Entity-Relationship (ER))

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

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

A: I will explain it in details,

Q: w an ERD & include all the entities, attributes and relationships, PKs and F

A: 1-ERD, showing the connection between one entity to every other entity, and ER diagram enables to…

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: What is the difference between a weak entity and one that requires communication?

A: Answer: The other entity that is required for communication is a strong entity. So, Weak entity and…

Q: A weak entity set may always be turned into a strong entity set by adding the primary-key attributes…

A: A weak entity set may permanently be transformed into a strong entity set by including the main…

Q: Explain the distinction between entity type and entity instance.

A: GIVEN: Explain the distinction between entity type and entity instance.

Q: An attribute that may take on more than one value for each entity instance in ERD is referred to as…

A: Answer :- option D) multivalued attribute

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: 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: a. Draw ER- notation for the given elements of ER-Model. 1. Entities a. Strong Entity b. Weak Entity…

A: Strong Entity: Weak Entity: Associate Entry:

Q: What types of information would you store in an entity subtype?

A: Entity Subtype Entity subtypes are entered into the ER model in order for decreasing the total…

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

A: What is ERD? Entity Relationship Diagram or ER Diagram or ER model, is a type of structural diagram…

Q: Based on the given ERD, identify all the business rules and explain them. Also, identify all primary…

A: Primary Keys are the unique keys to recognize uniquely rows in a table. And foreign keys are used…

Q: Define Entity cluster?

A: Entity cluster: An entity cluster is a “virtual or temporary” entity that actually does not exist…

Q: Regular entity type is transformed to a relation.

A: To be determine: Regular entity type is transformed to a relation.

Q: How is a relationship between entities indicated in an ERD? Give an example using the Crow’s Foot…

A: Relationship Representation in ERD(Entity Relationship Diagram):-   ER diagram or Entity…

Q: ntity Relationship Diagram (ERD) using Unified Modelling Language (UML) notation according to the…

A: The erd has 3 entities and 2 associative Entity to remove the many to many relationship. The entity…

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: What is an entity set?

A: An entity set is a group of similar entities and these entities can have attributes.

Q: What is the difference between a data entity (data model) and an external entity (process model)?

A: The data model defines how the data is stored and processed in an organization. There are three type…

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

A: Lets see the solution.

Q: What sort of information would you put in an entity subtype?

A: In the below step can I explained entity subtype.

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

A:

Q: Create an entity relationship diagram based on the following DFD Level 0

A: ERD stands for Entity Relationship Diagram which has a graphical representation of an information…

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

A: The answer is

Q: What is an entity?

A: Entity An entity is an object that exists. It can be a single thing, person, place or object.

Q: What is the difference between a weak entity and a strong entity that is necessary to have a…

A: This question comes from Database Management System which is a paper of Computer Engineering. Let's…

Q: oose an industry and submit a summary of its operation. Determine entities 20% State business rules…

A: Hey there, I am writing the required solution of the questin mentioned above. Please do find the…

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: Give an example of how the distinction between a candidate key and an entity type identifier is…

A: Explain the difference between a candidate key and an entity type's identifier. The distinction…

Q: A subtype is a sub-grouping of the entities in an entity type that is meaningful to the organization…

A:

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: What is the concept in which the entity(variable) and its attributes(type) are associated during the…

A: Entity :- Entity is smallest part of any programming language .              when entity run then…

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: A relationship between entity supertype and entity subtype is known as  ___

A: Subtype: Sub grouping of the entities in an entity type. Supertype: Supertype is a generic entity…

Q: Consider the following scenario A company provides catering services for clients who need…

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

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

A: Answer: An entity may be an object with a physical existence (for example, a particular person,…

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…

Fundamentals of Managing Data

Data management is creating, organizing, storing and managing the data collected and created by any organization.Effective data management is a crucial part of today's world. Data management provides analytical information on the vast amount of data collected from business applications daily, which helps make critical business decisions and plan and bring out the best strategies.