Consider the E-R diagram for a university database as shown in Figure 1. What is true about grade? (a) grade represents an entity set. (b) grade represents an attribute of takes. (c) grade represents an entity associated with takes. (d) none of the above.

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: Transform the table into 1NF, 2NF, and 3NF. Create a database diagram afterward. program subject…

A: 1NF:- A table is to be 1NF if there are no multivalued attributes and multi-group recurrent…

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: The crow's foot in a diagram a.) is only used to show N:M relationships. b.) shows the relationship…

A: Crow's foot Diagram contains crow foot notation in which the cardinality and modality of the…

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

A: Summary :- We got our result.

Q: how to translate the shown ER Diagram to a relational schema?

A: To convert 1:M relationship into relational schema, add primary key of entity on one side as foreign…

Q: Database Map the Hotel ER diagram into relations. The outcome schema should have: - Relations -…

A: Given: The Hotel ER diagram :

Q: 1. Total participation is where each entity participates in at least one relationship in the…

A: 1- True, Each entity in the entity set is involved in at least one relationship in a relationship…

Q: Consider the E-R diagram for a university database as shown in Figure 1. What does deparment…

A: Entity In the Entity-Relationship diagram, department represents entity. An entity is an object in…

Q: EPCode EPName FundSource Description EXTENSION_PR OGRAM ActCode Venue ActName Budget Date Lname…

A: The relational schema for the given ERD is given below. Since Collaborators is a multivalued…

Q: Transform the table into 1NF, 2NF, and 3NF. Create a database diagram afterward. program subject…

A:

Q: Design an Entity-Relationship for each system described below. Use the (min,max) notation. State…

A: 1) This Entity-relationship diagram: For more than 35 years, the entity relation (ER) data structure…

Q: Extract and write down the DB Schema for the following E-R Diagram. You need to write the name,…

A: Terminology used in this E-R diagram:

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

A: Entity Identifiers: Entity IDs are critical properties that are used to uniquely identify each…

Q: Create an ER model related to the following entities and relationships: Department, Student,…

A: The Diagram of the ER model is attached here with the answer. Please refer to step 2.

Q: Draw the ER-Diagram for the following database schema. Specify the types of relationships in detail…

A: Given, Customers {Customer_ID, C_Name} Employees {Employee_ID, E_Name} Orders        { Order_No,…

Q: Consider the E-R diagram for a university database as shown in Figure 1. Detect the weak entity…

A: Explanation: Weak entity is an entity that is depend on strong entity to ensure the existence of…

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: Draw the ER-Diagram for the following database schema. Specify the types of relationships in details…

A: Following is the diagram :

Q: 3. Figure 2 shows an Entity-Relationship (ER) diagram for a University dining service a) Develop a…

A: MENU( Menu ID, Menu Desciption, Menu Type) EVENT( Event ID, Event Date, Event Location, Event Time)…

Q: Given the ER diagram below, create relation schemas to capture the database design.

A: Database Management System(DBMS) is a software for storing and retrieving users data while…

Q: Explain how the entity relationship (ER) model helped produce a more structured relational database…

A:

Q: Illustrate a conceptual design of the database that needs to be built for Golden Gardens by means of…

A: An entity is an object in the real world with an independent existence that can be differentiated…

Q: Consider the Musician database ER diagram as shown in Figure Give the FDs for the constraints in the…

A: The Answer is

Q: A subtype/supertype relationships are especially important in Enhanced Entity Relationship…

A: A supertype is a generic entity type that has a relationship with one or more subtypes. A subtype is…

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

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

Q: Transform the following Entity Relationship Model into Relational Schema. DeptiD EmpiD DName Name…

A: The term "schema" refers to the organization of data as a blueprint of how the database is…

Q: Draw an Entity Relationship Diagram of Store Management System(Retail Store Database). Properly…

A: table: customer table - C_ID (primary key) bill table - Bill_ID (primary key) employee table - E_ID…

Q: Relationship Model for the hospital’s data model (Figure 1) in form of a diagram in Chen notation.…

A: Q.  You have been asked to design part of a database for a hospital. Thehospital managers provided…

Q: An entity-relationship diagram (ERD) is a specialized graphic that illustrates the relationships…

A: The solution for the above given question is given below:

Q: Why do you think entity relationship (ER) diagrams are important in database design?

A: Justification: An entity is a kind of data item or component. In an ER diagram, an entity is…

Q: Q3- Draw an ER diagram of COMPANY database, that captures all the given below requirements. Specify…

A: The solution for the above-given question is given below:

Q: 1. Illustrate a conceptual design of the database by means of an Extended Entity Relationship…

A: The given is a description of the details to be stored for a wholesale company named TakeItAll. The…

Q: With an example explain what a derived attribute is?

A: DBMS:- DBMS is software that is an interface between user and database(or data). The DBMS is a…

Q: What are the benefits of utilizing the same data model for both conceptual and logical design as…

A: Data Model : The data model is defined as an abstract model that organizes data definition, data…

Q: Why do you feel entity relationship (ER) diagrams are crucial in regard to database architecture?

A: INTRODUCTION: Database architecture: Database architecture is a visual representation of a database…

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: Subject: Database Identify ALL errors and correction on the entity relationship diagram (ERD) given…

A: The er diagram with a mistake is highlighted in figure 1 and correct er diagram is given below in…

Q: Question 1: For the following case studies, draw an ER diagram to represent the data requirements as…

A: Answer : Solution to the above problem : Main relationship-type : 1. Producer - to - Show :…

Q: Describes a relationship in which each instance of data in one entity is represented by only one…

A: The following are the three types of relationships that exist between entities: One-One…

Q: Consider the E-R diagram for a university database as shown in Figure 1. What is the primary key for…

A: Primary key In the diagram, the primary key for class room is building and room_number. A primary…

Q: Giving the following schema create an ER diagram for this Supermarket database, and show the primary…

A: Entity Relationship Diagram : An entity relationship diagram (ERD), also known as an 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: Convert each ERD that follows into a relational database schema diagram using the above schema…

A: In answer A there are 3 tables in which two tables are entities and one is a relationship table…

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…

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: Please read this carefully and Draw an EER diagram for a database of a hospital following these…

A: Entity Relationship (ER) diagram. This section explains the requirements for our three example…

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.