What kind of Entity instance would it be? REGISTRATION, COURSE, AND STUDENT A. Ali, Mohammed, and Khalid; B. Stud ID and Stud Name; C. STUDENT, COURSE, AND REGISTRATION Ali, Mohammed, Khalid; Stud ID; Stud Name; Student; Course d. Offers, records, and consists of

What kind of Entity instance would it be? REGISTRATION, COURSE, AND STUDENT A. Ali, Mohammed, and Khalid; B. Stud ID and Stud Name; C. STUDENT, COURSE, AND REGISTRATION Ali, Mohammed, Khalid; Stud ID; Stud Name; Student; Course d. Offers, records, and consists of

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter2: Database Design Fundamentals

Section: Chapter Questions

Problem 3TD

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Concept explainers

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.

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What kind of Entity instance would it be? REGISTRATION, COURSE,
AND STUDENT A. Ali, Mohammed, and Khalid; B. Stud ID and Stud
Name; C. STUDENT, COURSE, AND REGISTRATION Ali,
Mohammed, Khalid; Stud ID; Stud Name; Student; Course d. Offers,
records, and consists of

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entities: Residential students which fields like student id, Student name, exam papersTransfer students with fields like student id, transferred school, exam papers etc.Exam papers with fields like subjects, total marks, invigilator, checkers.Exam center with fields like Center Id, location, seating capacity etc. -Create an ER Diagram using the enumerated entities.
Explain entity sets.
Reference: A --> B--> C QUestion? what is the defintion of this type of relationship and what is an example of it?
TRUE or FALSE - A super-entity can only have two sub-entities and no more. Select one: a.FALSE b.TRUE
Briefly explain the hybrid entities.
ERD (Entity-Relationship Diagram) Explanation: The ERD is a high-level representation of the data relationships in the ConfPlus Conference Management System. It shows the main entities, their attributes, and the relationships between them. Entities: User: Represents a user in the system, including authors, reviewers, and organizers. Attributes include UserID, Name, Email, Password, Affiliation, and Role. Paper: Represents an academic paper submitted to the conference. Attributes include PaperID, Title, Abstract, PDF, and SubmissionDate. Authorship: Represents the relationship between a User (author) and a Paper. Attributes include AuthorshipID, UserID, PaperID, and IsPresenter (to indicate if the author is the presenter of the paper). Review: Represents a review assigned to a paper by a User (reviewer). Attributes include ReviewID, UserID, PaperID, OverallEvaluation, Contribution, Strengths, Weaknesses, and ReviewDate. Conference: Represents the conference itself. Attributes include…
d) Both a and b 5. Suitable level of partitioning is found within the range of a) Tuple and attribute b) Tuple and relation c) Attribute and relation d) Tuple/Attribute and relation ible horiz
lntroduction to Database
Given the following relation that stores details of employees and their projects: If the functional dependencies are consistent with the above relation, put TRUE. If they are not, put FALSE. 1.ProjectID ➡ EmployeeName 2.ProjectID ➡ EmployeeSalary 3.ProjectID , EmployeeName ➡ EmployeeSalary 4.EmployeeName ➡ EmployeeSalary 5.EmployeeSalary ➡ ProjectID 6.EmployeeSalary ➡ EmployeeName , ProjectID
1. Create an entity named Doctor and Patient and create a one-to-many mapping using JPA. Doctor_id Patient_id Qualifica Contact_ Salary Age no tion n Doctor treats Patient Name P_Name Address Write a main program to assign values to the Doctor and Patient entity using entity manager instance.
Create a database Entity and Relationship Diagram (ERD) for the following application (Submitted An image of the Diagram By using Any Application:The Application idea: It is a mobile application called (Khair) to help people. This assistance is moral, material. This assistance is also provided by good people in our community. Example to understand the Application idea more: For example, a person urgently needs a medical chair or bed and does not have the ability to purchase what he needs. The medical chair or bed is requested through the application, and whoever has what he requests initiates the request through the application’s messages and determines the meeting place. Application models (page): Login included: login registration login included: user name password New registration included: name E-mail Password phone number date National Identification Number Home page included: Request - applicant name - address - send message Messages list form included: list of users Messager…
Entity relationship diagram.