Given the following ERD, the best strategy to fix it is....CourseRequirementused byMajorsCoursesa. Create an ISA with Majors as parent having Courses and Course Requirements as Childsb. Create an aggregation enclosing Course and Course Requirementsc. Create an aggregation enclosing Majors and Courses.d. Create an ISA with Course as parent, having Major and Courses Requirements as Childs

Option A: Create an ISA with Majors as parent having Courses and Course Requirements as Childs…

Answered: Given the following ERD, the best…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Database Systems Data queries are Consider the System Description to reply the following queries, keeping in view the above mention system description title as “Dream Home branch offices case study”. (a) List the details of branches in a given city. (b) Identify the total number of branches in each city. (c) List the name, position, and salary of staff at a given branch, ordered by staff name. (d) Identify the total number of staff and the sum of their salaries. System Description: Branches Dream Home has branch offices in cities throughout the United Kingdom. Each branch office is allocated members of staff, including a Manager, who manages the operations of the office. The data describing a branch office includes a unique branch number, address (street, city, and postcode), telephone numbers (up to a maximum of three), and the name of the member of staff who currently manages the office. Additional data is held on each Manager, which includes the date that the Manager assumed his…
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
O 4. Entity set The ISBN in the image below for "BOOK" Entity type is considered as: Main Sub Annual ISBN Author Title Sal ВОOK O 1. Multi-Valued Attribute O 2. Single Attribute 3. Partial key attribute 4. Key attribute
All of you must be familier with human resources system (employee database). Soplease design database for a human resources system that at least has 4 entitiesinvolved and for the 4 entities please do the following:a. Create the tables that conform to 3NF.b. Draw the Crow’s Foot ERD to reflect the dependency and relationshipdiagrams;c. For all entities/tables created please write the MASTER and TRANSACTIONdata accordingly!d. Use SQL commands to to do selection which involve 1 table, 2 tables, and 3tables.
7. In the context of database design, consider the following scenario: There is database table that contains columns for employee ID, employee name, department, department location, and project details. Upon analyzing the table, you notice that there are multiple rows with the same employee name, department, and department location, but different project details. Based on this scenario, which of the following best describes the normalization process that should be applied to improve the database design? A) Split the table into two: one containing employee ID and employee name, and the other containing department, department location, and project details. B) Combine all columns into a single table to reduce redundancy. C) Normalize the database to the third normal form by creating separate tables for employee details, department details, and project details, and establish relationships between them. D) No action is required as the table already follows the normalization principles.
i have an ERD question to finish please
1. Use Bizagi Processer Modeler to model any FUNCTIONAL PERSPECTIVE part of the registration process and include both exclusive join, exclusive split and parallel split and parallel join. 2. Take the process model in question 1 and enrich it with both physical and electronic artifacts.
Swing Jazz Club ERD Problem Follow the Simple Procedure for ERD diagramming to design an ERD using the following user provided information. Remember the ERD will eventually turn into the design for a database from a top down view. Make sure you resolve any many to many conflicts. Label an identifier or primary key and all pertinent attributes given. If an attribute is not readily apparent from the user information, then make one up that makes sense for the particular entity. Therefore, all entities should end up with at least an identifier and another attribute that makes sense. You may use any of the approaches shown by the book, though the ER-Model and Crow’s foot are the most common. Make sure you show entities, relationships, cardinality, and optionality. Swing Jazz Club The Swing Jazz Club teaches swing and jazz dancing and offers both private and group lessons. Swing Jazz charges $60 dollars per hour for a private lesson and $10 dollars per hour for a group lesson.…
For each of the following collection of entities, give the assumptions concerning the relationship between entities and attributes. EMPLOYEE(EMP_NUM, EMP_LNAME, EMP_INITIAL, EMP-DOB) DEPENDENT(EMP_NUM, DEP_NUM, DEP_FNAME, DEP_DOB)
Please read this carefully and Draw an EER diagram for a database of a hospital following these requirements: create Four to five regular strong entities. A union One 1:1, one 1:N, and one N:M relationship – of which at least one relationship should be partial and one full. One overlap relationship and one disjoint relationship. Other notes: Do not emphasize on too many attributes for the entities. Two to three attributes for each entity will be enough. Make sure to include a primary key for each entity.

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