Question#2: Given the following Theatre Database form: No.of seats:500 Owner: J.Martin Year Founded: 1890 Owner’s Phone: 2347756 Play Name Play Type No. of performances Play Author name Play Author nationality MacBeth Tragedy 35 W.shakesper English Ulysses Drama 12 J.Joyce Irish Represent the above as an unnormalized relational schema then apply the rules of normalization to normalize it to 3NF.

Question#2: Given the following Theatre Database form: No.of seats:500 Owner: J.Martin Year Founded: 1890 Owner’s Phone: 2347756 Play Name Play Type No. of performances Play Author name Play Author nationality MacBeth Tragedy 35 W.shakesper English Ulysses Drama 12 J.Joyce Irish Represent the above as an unnormalized relational schema then apply the rules of normalization to normalize it to 3NF.

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter2: Database Design Fundamentals

Section: Chapter Questions

Problem 11RQ

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A University database is described by the following relational schema. Student (StudentId, Name, MatrNr, Faculty)Lecturer (LecturerID, Name, Institute, Salary) Faculty (FacultyID, PAYENo, Name, PersonType, Department, Faculty, Institute, TeachingStatus, Salary, CarLotNo, ComputerNo) Write one SQL script to populate the faculty database with the three lecturers below given the following critical information for each lecturer. 1- John Doe is new and so does not have a computer.2- Jack Sprat does not drive a car.3- Win Ling is a visiting professor
The following is a relational schema for a database to document sharksightings for a research project. Primary keys are underlined. ForeignKeys are identified by FK, and their name indicates the attribute that theyreference.________________________________________________________________Sharks(shark_id:Integer, name:String, species_name:String,tagged_by_mission_id:Integer (FK))Sightings(shark_id:Integer (FK), sighting_num:Integer,sight_time:Timestamp, lat:Real, lng:Real, ocean:String, mission_id:Integer(FK))Missions(mission_id:Integer, start_date:Date, end_date:Date,vessel_id:Integer (FK))ResearchVessels(vessel_id:Integer, name:String)________________________________________________________________Sharks identified by a unique id, have a name which is not necessarilyunique, and a scientific species name.All Sharks are tagged and are sighted by Research Vessels, which areresearch ships that go on research Missions throughout the year. EachMission has a start and end date. Shark…
Consider a database that consists of the following relations.SUPpLIER(Sno. Sname)PART(Pno, Pname)PROJECT(Jno, Jname)SUPPLY(Sno, Pno, Jno)The database records information about suppliers, parts, and projectsandincludes a ternary relationship between suppliers, parts, and projects.Thisrelationship is a many-many-many relationships. Specify and execute thefollowingqueries using the relational algebraRetrieve the part numbers that are supplied to exactly two projects.b. Retrieve the names of suppliers who supply more than two parts toproject J11c. Retrieve the part numbers that are supplied by every supplier.d. Retrieve the project names that are supplied by supplier S1' only.e. Retrieve the names of suppliers who supply at least two different partseach to at least two different projects.
Consider the following relational schema:Student (sid, sname, dept)Enroll (cid, sid, grade, semester)Course (cid, cname, dept, credit)Prereq (cid, pid) Write the following queries in Relational Algebra expression: a) For students who have received an A in a course, return name of students and titleof the course. b) Find name and id of students taken at least one of the prerequisite of CS595course and got an A grade in this prerequisite course.
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: (note that 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. Each question is worth 2 marks.NOTE:• You can use the symbols etc or the words ‘PROJECT’, ‘RESTRICT’ etc as you prefer. • You do not need to try to make efficient queries – just correct ones. • Where you use a join, always show the join condition.a. List the quantity of parts supplied on JobNo 4745.b. List the weight of the Part named “Left-handed screwdriver”.c. List the Project name and Part name of any Parts where fewer than 500 of the part has been supplied to a…
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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: (note that 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 σ, π, etc or the words ‘PROJECT’, ‘RESTRICT’ etc as you prefer.• You do not need to try to make efficient queries – just correct ones.• Where you use a join, always show the join condition.a. List the Project name and Part name of any Parts where fewer than 500 of the part has been supplied to a particular project.b. List the name of any Suppliers who have supplied Parts to the Project called “New Academic Building” or to the Project…
Consider the relational database below, where the primary keys are underlined.employee (person-name, street, city)works (person-name, company-name, salary)company (company-name, city)manages (person-name, manager-name)Give a query for each of the following:a Give all managers in database a 10 percent raise.b Give managers in the database a 10 percent raise, unless the salary would be greaterthan $100,000. In such cases, give only 3 percent raise.c Delete all tuples in the works relation for employees of Small Bank Corporation
Consider the following shorthand representation of a relational database used by a book publisher to answer the following questions.BRANCH (BRANCH_NUM, COUNTRY, NUM_EMPLOYEES) WRITER (WRITER_NUM, LAST_NAME, FIRST_NAME, BOOK_NUM) BOOK (BOOK_NUM, TITLE, TYPE, PRICE, WRITER_NUM) INVENTORY (BOOK_NUM, BRANCH_NUM, ON_HAND)2.3 List the number of employees for each branch in South Africa. 2.4 List the book code and title of each book of type “Romance”. 2.5 For each type of book list the type and the average price. 2.6 Find the title for each book written by “Bob Builder”. 2.7 List the name of all books in South Africa written by “Hans Anderson“ 2.8 Count the number of books (AS NumOfBooks) written by each author
Consider the relational database below, where the primary keys are underlined.employee (person-name, street, city)works (person-name, company-name, salary)company (company-name, city)manages (person-name, manager-name)Give a query for each of the following:a Find the company that has the smallest payroll.b Modify the database so that Jones now lives in Newtown.c Give all employees of the First Bank Corporation a 10 percent raise.d Give all managers in database a 10 percent raise.e Give managers in the database a 10 percent raise, unless the salary would be greaterthan $100,000. In such cases, give only 3 percent raise.f Delete all tuples in the works relation for employees of Small Bank Corporation.
Given the following relational schema (Hint: the bold text represents a primary key), Professor(emp_num, emp_fname, emp_lname, emp_dob, dept_code, prof_ext)Class (class_code, course_code, class_section, class_time, class_room, emp_num)Course (course_code, course_name, crs_credits, dept_code) Write a relation algebra to find all "Database Design and Implementation" classes including section, time, room, and professor name (first name and last name). Hint: "Database Design and Implementation" is the course name
You are given the following database schema:Sailors(sid, sname, rating, age)Boats(bid, bname, color)Reserves(sid, bid, day)Consider the join on Sailors ▷◁ Reserves and assume that you have the following statistics andlimitations: * You have available 9 pages in main memory.* Sailors: 100000 tuples, 1000 pages; Boats: 2000 tuples, 10 pages; Reserves: 110000 tuples,550 pages 1. Calculate the I/O cost of sorting the Sailors relation?2. Calculate the I/O cost of sorting the Reserves relation?3. Calculate the total I/O cost of this join if we use Sort/Merge join?

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No.of seats:500	Owner: J.Martin
Year Founded: 1890	Owner’s Phone: 2347756
Play Name	Play Type	No. of performances	Play Author name	Play Author nationality
MacBeth	Tragedy	35	W.shakesper	English
Ulysses	Drama	12	J.Joyce	Irish