Consider the following relations for a database that keeps track of auto sales in a car dealership (Option refers to so optional equipment installed on an auto) Department(Serial-No, Model, Manufacturer, Price) OPTIONS(Serial-No. Option-Name, Price) SALES (Salesperson-id, Serial-No, Date, Sale-price) SALESPERSON (Salesperson-id, Name, Phone)

Consider the following relations for a database that keeps track of auto sales in a car dealership (Option refers to so optional equipment installed on an auto) Department(Serial-No, Model, Manufacturer, Price) OPTIONS(Serial-No. Option-Name, Price) SALES (Salesperson-id, Serial-No, Date, Sale-price) SALESPERSON (Salesperson-id, Name, Phone)

Database Systems: Design, Implementation, & Management

11th Edition

ISBN:9781285196145

Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel

Publisher:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel

Chapter10: Transaction Management And Concurrency Control

Section: Chapter Questions

Problem 1P

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Consider a relational database for an online hotel booking company. The database consisting ofthe following tables (where the primary keys are underlined): Hotel (hId, hName, hAddress, hCity) Guest(gId, gName, gAddress, gCity) Room(hid, roomNo, type, price) Booking(gId, hId, roomNo, fromDate, year, noOfDays)Where hId and gId are identifiers for the hotels and the guests,and the Booking relation indicated that a guest booked a hotel room for a specified number of days(noOfDays) starting from fromDate of a given year. For instance, a tuple < g12345, h5555, 220,Jan05, 2016, 15> in Booking indicates that the guest g12345 booked room 220 of the h5555 hotelfor 8 days starting on Jan 5, 2016. The attribute "gAddress" records the home address of theguests.Write the following queries in relational algebra (1) Return thename of guests who have booked a hotel room in NYC in January 2016 (i.e.,fromDate between 01/01 and 01/31 and year=2016).(2) Return thename of guests who have booked a…
Consider the Database schema on the relations Courses (Number, Faculty, Course Title, Tutor) Student (Number, Surname, First Name, Faculty) Tutors (Number, Surname, First Name) Exam (Student, Course, Grade, Date) Study Plan (Student, Course, Year) Formulate in relational algebra, in domain calculus, in tuple calculus and in Data log, the queries that produce: The student who have gained an ‘A’ in at least one exam, showing for each of them, the first name, sur name and the date of the first of such occasions; For every course in the engineering faculty, the student who passes the exam during last session; The students who pass all the exams required by their respective study plan For every course in the literature faculty, the student who pass the exam with the highest grade; The student whose study plans require them to attend lectures only in their own faculties; First name and sur name of the students who have taken an exam with a tutor having the same surname as the…
3- Consider a database for a university system that needs to store information about students,courses, and instructors. Each student can enroll in multiple courses, and each course can havemultiple instructors. Normalize the following schema to Third Normal Form (3NF), and showyour steps in between (1NF, 2NF).Students (StudentID, FirstName, LastName, CourseID, InstructorID)Courses (CourseID, CourseName, InstructorID)Instructors (InstructorID, FirstName, LastName)4- To keep track of office furniture, computers, printers, and other office equipment, the FOUNDITCompany uses the table structure shown below.a. Given that information, write the relational schema and draw the dependency diagram.Make sure that you label the transitive and/or partial dependencies.b. Write the relational schema and create a set of dependency diagrams that meet 3NFrequirements. Rename attributes to meet the naming conventions, and create newentities and attributes as necessary.
Given the database schema with the following relations: STUDENT (id_stud, name_stud) LECTURER (id_lect, name_lect) SUBJECT (id_subject, id_lect, name_subject, credits, id_room) ROOM (id_room, no_room) ENROLL (id_stud, id_subject) Create an algebraic relation for: a. Displays all names of lecturers who teach the subject with a total of 4 credits b. Displays all no_room with the student name "Eko" c. Displays all data in the form of student id, student name, name of the course followed and the name of the lecturer who taught the subject name "Database" From the database schema and the questions above, create an appropriate SQL query for each of these statements above.
Consider a database schema with a relation Emp whose attributes are as shown below, with types specified for multivalued attributes. Emp = (ename, ChildrenSet multiset(Children), SkillSet multiset(Skills))Children = (name, birthday)Skills = (type, ExamSet setof(Exams))Exams = (year, city) Redesign the database above into first normal form and fourth normal form. List any functional and multivalued dependencies that you assume. Also list all referential-integrity constraints that should be present in the first and fourth normal form schemas.
I need help with the following Consider a STUDENT relation in a UNIVERSITY database with the followingattributes (Name, Ssn, Local_phone, Address, Cell_phone, Age, Gpa). Note thatthe cell phone may be from a different city and state (or province) from thelocal phone. A possible tuple of the relation is shown below:Name Ssn Local_phone Address Cell_phone Age GpaGeorge Shaw 123-45-6789 555-1234 123 Main St., 555-4321 19 3.75William Edwards Anytown, CA 94539a. Identify the critical missing information from the Local_phone andCell_phone attributes. (Hint: How do you call someone who lives in a dif ferent state or province?)b. Would you store this additional information in the Local_phone andCell_phone attributes or add new attributes to the schema for STUDENT?c. Consider the Name attribute. What are the advantages and disadvantagesof splitting this field from one attribute into three attributes (first name,middle name, and last name)?d. What general guideline would you recommend for…
Draw an ER diagram and then map it into a relational schema(database) for the following scenario.• For each MEMBER we keep track of the unique MemdID, a well as Name, Zip, and the Datethe membership was paid.• For each MEMBERSHIP type we keep track of the unique Mid, as well as MName and Price• For each PASS CATEGORY we keep track of the unique PassCatID, as well as PCName andPrice• For each ONE DAY PASS we keep track of the unique PassID and Date• For each MERCHANDISE item we keep track of the unique MrchID, as well as Name andPrice• For each sale TRANSACTION we keep track of the unique Tid and Date• Each member pays for exactly one membership type; each membership type has at leastone member but can have many members.• Each member can buy many day passes but does not have to buy any, each day pass wasbought by exactly one member• Each day pass belongs to exactly one pass category; a pass category can have manyindividual day passes issued for it but does not have to have any. • Each…
Consider that a database contains the following relations PARENT(X, Y), and a relation BIRTH(X, B), where B is the birthdate of a person X. The following information is used for question (b), (c) that we have the following family tree
5.14 - Consider the following six relations for an order-processing database application in a company: CUSTOMER (Cust#, Cname, City) ORDER (Order#, Odate, Cust#, Ord_Amt) ORDER_ITEM (Order#, Item#, Qty) ITEM (Item#, Unit_price) SHIPMENT (Order#, Warehouse#, Ship_date) WAREHOUSE (Warehouse#, City) Here, Ord_Amt refers to total dollar amount of an order; Odate is the date the order was placed; Ship_date is the date an order (or part of an order) is shipped from the warehouse. Assume that an order can be shipped from several warehouses. Specify the foreign keys for this schema, stating any assumptions you make. What other constraints can you think of for this database?
Draw the relationships and entities model for each of the following: * in the traditional way* for example: see the pic??. In the database of the library, the author can author more than one book, and the book can be subscribed toWritten by more than one author
Consider the following relations in the relational schema for a database that keeps track of business trips of Sales Representatives in a sales office: salesperson(SSN, lName, startYear, deptNo) trip(tripID, SSN, fromCity, toCity, departureDate, returnDate) expense(tripID, accountNumber, amount) Part 1 Answer the Following 3 Questions. Places Your Answers in a Word Processor identify the primary key for each table. Identify the foreign keys in each table. Given the above foreign keys, list the order in which the tables could be successfully created. Write your Answers using a Word Processor Review the Relational Schema and other necessary material in this assignment to create the metadata document for the above relational schema. Write your Metadata using a Spreadsheet or a Word Processor. Submit the Final Version as a PDF Open up a text editor such as Visual Studio Code. Write the SQL SELECT Queries to respond to the following Information Requests Find…
Consider the following relations for a database that keeps track of student enrolment in courses and the books adopted for each course: STUDENT(SSN, Name, Major, Bdate) COURSE(Course#, Cname, Dept) ENROLL(SSN, Course#, Quarter, Grade) BOOK ADOPTION(Course#, Quarter, Book_ISBN) TEXT(Book_ISBN, Book Title, Publisher, Author) Draw a relational schema diagram specifying the foreign keys for this schema. Consider the following relations for a database that keeps track of student enrolment in courses and the booksadopted for each course: STUDENT(SSN, Name, Major, Bdate) COURSE(Course#, Cname, Dept) ENROLL(SSN, Course#, Quarter, Grade) BOOK ADOPTION(Course#, Quarter, Book_ISBN) TEXT(Book_ISBN, Book Title, Publisher, Author) Draw a relational schema diagramspecifying the foreign keys for this schema.

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