1. List all book titles titles published between 2012 to 2020. 2. List all copies of the book titled 'Lord of the Rings' that are available for borrowing (Y' for available). Show only the copy numbers. 3. List the names of borrowers who still have the books with them (date due is greater than today's date).
1. List all book titles titles published between 2012 to 2020. 2. List all copies of the book titled 'Lord of the Rings' that are available for borrowing (Y' for available). Show only the copy numbers. 3. List the names of borrowers who still have the books with them (date due is greater than today's date).
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
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Based on the table provided, answer the following questions in relational algebra.
Transcribed Image Text:1. List all book titles titles published between 2012 to 2020.
2. List all copies of the book titled 'Lord of the Rings' that are available for borrowing (Y' for
available). Show only the copy numbers.
3. List the names of borrowers who still have the books with them (date due is greater than
today's date).
4. How many copies of ISBN 'O1-321-52306-7' are there? Give the new column an alias.
5. How many times each book title been borrowed? Give the new column an alias.
Transcribed Image Text:The following tables form part of a Library database held in an RDBMS:
Book (ISBN, title, edition, year)
BookCopy (copyNo, ISBN, available)
Borrower (borrowerNo, borrowerName, borrowerAddress)
BookLoan (copyNo, dateOut, dateDue, borrowerNo)
where
Book
contains details of book titles in the library and the ISBN
(International Standard Book Number) is the key.
BookCopy contains details of the individual copies of books in the library and
copyNo is the key. ISBN is a foreign key identifying the book title.
Borrower contains details of library members who can borrow books and
borrowerNo is the key.
BookLoan contains details of the book copies that are borrowed by library
members and copyNo/dateOut forms the key. borrowerNo is a
foreign key identifying the borrower.
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