coursesdasses↑coursel INTcourseDateTime DATETIME Oroom INTcoursel INTcourseName VARCHAR(45)course Description VARCHAR(45)room are used by a class.For each entity:EntitiosroomsFroom DVTL-building VARCHAR(X)capacity VARCHAR(45)IndersThe ERD depicts the data needed to track which course andIndicate if the entity is strong, weak ID-dependent, or weak non-ID-dependentFor each relationship:•List the cardinality and participation of each entity in the relationshipList the business rules for each relationshipIndicate if the relationship is identifying or not

Introduction ERD: ERD(Entity Relationship Diagram). It is a graphical representation of entities and…

dasses ↑coursel INT courseDateTime DATETIME room INT courses coursel INT courseName VARCHAR(45) courseDescription VARCHAR(45) rooms room DVT building VARCHAR(X) capacity VARCHAR(45) The ERD depicts the data needed to track which course and room are used by a class. For each entity: • Indicate if the entity is strong, weak ID-dependent, or weak non-ID-dependent For each relationship: • List the cardinality and participation of each entity in the relationship List the business rules for each relationship Indicate if the relationship is identifying or not

dasses ↑coursel INT courseDateTime DATETIME room INT courses coursel INT courseName VARCHAR(45) courseDescription VARCHAR(45) rooms room DVT building VARCHAR(X) capacity VARCHAR(45) The ERD depicts the data needed to track which course and room are used by a class. For each entity: • Indicate if the entity is strong, weak ID-dependent, or weak non-ID-dependent For each relationship: • List the cardinality and participation of each entity in the relationship List the business rules for each relationship Indicate if the relationship is identifying or not

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

See similar textbooks

Similar questions

Digital Wallet: the access control rule for the class Transaction and boundary use case for the entity class Transaction
Problem You want to create a new kind of instance attribute type with some extra functionality, such as type checking.
pls help me : Draw an ER diagram according to the following requirements:Database to manage daily medical examination and treatment in the hospital (not interested in treating inpatients):- The hospital has many doctors and nurses from different departments. Each doctor and nurse belongs to only one department- The patient when he comes to the doctor will be created a patient record if it is the first visit- Each visit will be made a medical record and assigned an initial clinic. Each visit is attended by a doctor and an assistant nurse.- The doctor may ask the patient to perform tests, x-rays, endoscopy, ....- After the results are available, the patient returns to the original clinic for the doctor to read the results and prescribe medicine if any- Patients can buy medicine in the hospital pharmacy or buy it outside
Given a Customer entity class with a CustomerId property for its primary key, which of the following defines a foreign key property if it’s coded in another entity class named Invoice? 1. public int CustomerId { get; set; } 2. public int InvoiceId { get; set; } 3. public Invoice Invoice { get; set; } 4. public Customer Customer { get; set; }
//Need typed version please You are working with a database that stores information about suppliers, parts and projects. The Supply relation records instances of a Supplier supplying a Part for a Project. The schema for the database used in this question is as follows: ( primary keys are shown underlined, foreign keys in bold). SUPPLIER (SNo, SupplierName, City) PART (PNo, PartName, Weight) PROJECT (JobNo, JobName, StartYear, Country) SUPPLY (SNo, PNo, JobNo, Quantity) Provide relational algebra (NOT SQL) queries to find the following information. NOTE: You can use the symbols s, P, etc or the words ‘PROJECT’, ‘RESTRICT’ etc . do not need to try to make efficient queries – just correct ones. Where you use a join, always show the join condition. List the name of any part that was not used on a project that commenced in 2020. List the name of any part that has been supplied to all projects that commenced in 2020.
In what ways does it matter what data type a field is set to be?
Data base systmes: Design an ER schema diagram for a sport league database to keep track of the teams and games of it. The database is organized into teams. Each team has a unique name, a unique number, and particular colors. A team may have several colors. Each team plays several games. It is desired to keep track of the result of each game. A team has a number of players, not all of whom participate in each game. Each player has a unique name, a unique number, and a particular position. It is desired to keep track of the players participating in each game for each team, the performance they played in that game, and the time played by each player in each game.
Databases: Regular entity type is transformed to a relation.
2- Design a class diagram of a course registration system. Note: utilize various class relations: generalization, aggregation, composition, and association; the class diagram should include but not be limited to the following class names User, Student, Instructor, Admin, Course, LogonPage, AddPage, DropPage, ChangePage, PrintPage, QueryPage, CoursenfoDB, StudentInfoDB, InstructorinfoDB, AdmintnfoDB, and EntireDB.
branch(branchhame, branch+citysassets} customer (HD, Customer name, customer street, customer city) loan loan number branch_name, amounty borrower(ID; loan_number account (account_number, branch name, balance)e depositor (HDs account number)- Figure le Consider the bank database in Figure 1, where the primary keys are underlined. Each branch might have many loans or accounts, associated with borrowers or depositors, respectively. Construct the following SQL queries for this relational database. 1. Find the name of each branch that has at least one customer who has an account in the bank and who lives in the "Harrison" city. Make sure each branch name only appears once. 2. Find the ID of each customer who lives on the same street and in the same city as customer "12345". (1) Please use "tuple variables". e (2) Please use "derived relations" or “with". 3. Find the ID of each customer of the bank who has an account but not a loan. 4. Find the total sum of all loan amounts for each branch…
O All of the above 5. Refactoring is part of the reengineering process O True False 6. Every aggregation relationship is an association (1 Point)
2- Design a class diagram of a course registration system. Note: utilize various class relations: generalization, aggregation, composition, and association; the class diagram should include but not be limited to the following class names User, Student, Instructor, Admin, Course, LogonPage, AddPage, DropPage, ChangePage, PrintPage, QueryPage, CourselnfoDB, StudentInfoDB, InstructorlnfoDB, AdminlnfoDB, and EntireDB.