Homework Solution: I need help with this assignment. Please use assignment operator for each question and explain w…

    I need help with this assignment. Please use assignment operator for each question and explain why the answer is what it is. Consider a library database with the following schema (where primary keys are in parenthesis): Book( (bookID), ISBN, title, author, publish-year, category) Member((memberID), (lastname), (firstname), address, phone-number, limit) CurrentLoan((memberID), (bookID), loan-date, due-date) History((memberID), (bookID), (loan-date), return-date) Members can borrow books from the library. The number of books they can borrow is limited by the “limit” field of the Member relation. The category of a book includes fiction, non-fiction, children’s and reference. The CurrentLoan table represents the information about books that are currently checked out. When the book is returned to the library, the record will be removed from CurrentLoad relation, and will be inserted into History relation with the return-date. A library may have more than one copy of the same book, in which case each copy has its own bookID, but all copies share the same ISBN. Express each of the following tasks in relational algebra. (5 pts) Find the ISBN and title of all the books authored Arthur Miller. (8 pts) List the bookID and title of all the books that are currently checked out by John Smith. Do not use any natural join in this query. (8 pts) Find the first name and last name of the members who are either currently borrowing book “Da Vinci Code” or have borrowed it in the past. (6 pts) Find the memberID, first name, and last name of the members who have never borrowed any books. (8 pts) List the first and last names of members who have borrowed (either currently or in the past) all the books in the library that are authored by Arthur Miller. If some books authored by Arthur Miller have multiple copies, he or she must have borrowed at least one copy of each of Arthur Miller’s books. (5 pts) Find the total number of books for each category (write a single query for this question).

    Expert Answer

    1. SELECT ISBN,title FROM Book

    I scarcity succor with this provision. Please verification provision operator restraint each topic and elucidate why the apology is what it is.

    Consider a library database with the coercionthcoming schema (where pristine keys are in parenthesis):

    Book( (bookID), ISBN, discourse, creator, publish-year, condition)

    Member((memberID), (lastname), (firstname), discourse, phone-number, expression)

    CurrentLoan((memberID), (bookID), loan-date, due-date)

    History((memberID), (bookID), (loan-date), return-date)

    Members can attribute dimensionss from the library. The calculate of dimensionss they can attribute is expressioned by the “limit” province of the Member aspect. The condition of a dimensions includes fable, non-fiction, children’s and kinsman. The CurrentLoan board represents the not attributable attributableification environing dimensionss that are currently checked extinguished. When the dimensions is returned to the library, the archives earn be removed from CurrentLoad aspect, and earn be inserted into History aspect with the return-date. A library may keep more than unmarried portraiture of the similar dimensions, in which event each portraiture has its avow dimensionsID, yet complete copies distribute the similar ISBN.

    Express each of the coercionthcoming tasks in relational algebra.

    (5 pts) Find the ISBN and discourse of complete the dimensionss creatored Arthur Miller.

    (8 pts) List the dimensionsID and discourse of complete the dimensionss that are currently checked extinguished by John Smith. Do not attributable attributable attributable verification any normal confederate in this interrogation.

    (8 pts) Find the original designate and conclusive designate of the members who are either currently attributeing dimensions “Da Vinci Code” or keep attributeed it in the late.

    (6 pts) Find the memberID, original designate, and conclusive designate of the members who keep never attributeed any dimensionss.

    (8 pts) List the original and conclusive designates of members who keep attributeed (either currently or in the late) complete the dimensionss in the library that are creatored by Arthur Miller. If some dimensionss creatored by Arthur Miller keep multiple copies, he or she must keep attributeed at meanest unmarried portraiture of each of Arthur Miller’s dimensionss.

    (5 pts) Find the whole calculate of dimensionss restraint each condition (transcribe a unmarried interrogation restraint this topic).

    Expert Apology

    1.

    SELECT ISBN,title

    FROM Dimensions

    WHERE creator = ‘Arthur Miller’

    2.

    SELECT Dimensions.bookID, Dimensions.title

    FROM Dimensions,Member,CurrentLoan

    WHERE (Member.firstdesignate = ‘John’ AND Member.lastdesignate = ‘Smith’ and Member.memberID = CurrentLoan.memberID)

    3.

    SELECT dimensionsID as id

    FROM Dimensions

    WHERE discourse = ‘Da Vinci Code’

    SELECT Member.firstname, Member.lastname

    FROM Member, Dimensions, CurrentLoan, History

    WHERE (CurrentLoan.memberID = Member.memberID AND History.memberID = Member.memberID AND CurrentLoan.bookID = id AND History.bookID = id)

    4.

    SELECT memberID,firstname,lastname

    FROM Member

    NATURAL LEFT JOIN History

    WHERE loan-date IS NULL