Map the following EER diagram into relational database schema: Degree program Works on Number M Start Date N SSN Student N Co- investigator M Project Employee End Date Name Works at N Professor N Principial investigator Sponsor Age Budget 1 Rank Chairs Research speciality N Works at Department Number % Name Main office

Map the following EER diagram into relational database schema: Degree program Works on Number M Start Date N SSN Student N Co- investigator M Project Employee End Date Name Works at N Professor N Principial investigator Sponsor Age Budget 1 Rank Chairs Research speciality N Works at Department Number % Name Main office

Principles of Information Systems (MindTap Course List)

13th Edition

ISBN:9781305971776

Author:Ralph Stair, George Reynolds

Publisher:Ralph Stair, George Reynolds

Chapter12: System Acquisition And Development

Section: Chapter Questions

Problem 3PSE: A new sales ordering system needs a relational database that contains a customer table, a product...

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A new sales ordering system needs a relational database that contains a customer table, a product inventory table, and an order table. Use a word-processing, graphics, or spread-sheet program to draw an entity-relationship diagram showing the relationships among these entities. Next, design each of these tables showing the keys and attributes to be included in each table. Include five sample records for each table.
Given the following relational schema of a database library (primary keys are underlined and foreign keys are preceded by #): Student(studentNumber, StudentName, studentAddress) Book(bookNumber, bookTitle, #authorNumber, #editorNumber, yearEdition) Author(authorNumber, authorName, authorAddress) Editor(editorNumber, editorName, editorAddress) Borrow(#studentNumber, #bookNumber, borrowDate, returnDate) Write the following queries in Relational Algebra: List the details (bookNumber, bookTitle) of books whose author’s name is ‘Ramakrishnan’
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Introduction to database systems Question: Create an ER diagram relational schema and queries of a charity donation application that has classes as follows: Donor(name, address, mobile number, email) with subclasses: DonateMoney(name, amount, card number,security code) and DonateOther(item, name, address, mobile number, email), Volunteer(name, address, mobile number, email) and Organization(name, address, mobile number, email). The description of the application is as follows: the user can either donate money or donate other such as food, clothes,books, etc where he/she will have to first select the organization he/she is willing to donate to and then fill in the required information. The user could also volunteer by selecting what organization he/she wants to volunteer to and filling in the required information.
Design a relational database schema from the Car Sharing IS domain class diagram. Output should look like image number 2
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Question Description of the project A city college would like to maintain their academic information in a MySql database system. The following are the interested information: Courses: Catalog # (M 170 for instance) Credit Hours; Name of the Course (Database Design Fundamentals for instance) Course Descriptions Prerequisite Components (Lecture, or Laboratory for instance) Classes: Class # Class Name (usually the course name, M 170 for instance) Start Date End Date Meeting time (9:30 am ~ 12:15 pm, for instance) Days in a week (Monday) Term (Spring 2018, for instance) Location (TIE Building for instance) Room (UB 301, for instance) Instructor Online status (online, or in-person) Faculty: Employee Id (001880301, for instance) First Name Last Name Title (professor, for instance) Email Phone Office Location (TIE building, for instance) Room (UB303, for instance) Student: Student ID First Name Last Name Plan Sub Plan Advisor Current GPA Grade of each course The Term you got the…
173. The graphical representation of database description is called a. dynamic schema diagram b. schema diagram c. structure diagram d. entity path diagram
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Computer Science Design an OO schema for a database application that you are interested in.Construct an EER schema for the application, and then create the corresponding classes in ODL. Specify a number of methods for each class, andthen specify queries in OQL for your database application.
Based on the following database schemas:Homestay (homestayNo (PK), homestayName, address, telNo, city)Room (roomNo, homestayNo (PK), type, price)Booking (homestayNo, guestNo (PK), dateFrom, dateTo, roomNo)Guest (guestNo (PK), guestName, guestAddress, guestTelNo)Assume the following indexes exist:a) a hash index with no overflow on the roomNo and homestayNo as a composite primary key in Room;b) a clustering index on the foreign key attributes homestayNo in Room;c) a B+-tree index on the price attribute in Room;d) a secondary index on the attribute type in Room.nTuples(Room) = 20000 bFactor(Room) = 200nTuples(Homestay) = 100 bFactor(Homestay) = 40nTuples(Booking) = 100000 bFactor(Booking) = 60nDistincthomestayNo(Room) = 50 nDistinctroomNo(Booking) = 150nDistincttype(Room) = 10 nDistincthomestayName(Homestay) = 50nDistinctprice(Room) = 500 maxprice(Room) = 500minprice(Room) = 200 nLevelstype(I) = 2nLevelshomestayNo(I) = 2 nLfBlocksprice(I) = 50nLevelsprice(I) = 2 Log2100 = 6.64Log250 =…