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теmber(memb_ло, пате) book(isbn, title, authors, publisher) borrowed(memb_no, isbn, date) Figure 3.20 Library database.

теmber(memb_ло, пате) book(isbn, title, authors, publisher) borrowed(memb_no, isbn, date) Figure 3.20 Library database.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Consider the library database of Figure 3.20.Write the following queries in SQL.
a. Find the member number and name of each member who has borrowed
at least one book published by “McGraw-Hill”.
b. Find the member number and name of each member who has borrowed
every book published by “McGraw-Hill”.
c. For each publisher, find the member number and name of each member
who has borrowed more than five books of that publisher.
d. Find the average number of books borrowed per member. Take into account
that if a member does not borrow any books, then that member does
not appear in the borrowed relation at all, but that member still counts in
the average.
теmber(memb_ло, пате) book(isbn, title, authors, publisher) borrowed(memb_no, isbn, date) Figure 3.20 Library database.
Transcribed Image Text:теmber(memb_ло, пате) book(isbn, title, authors, publisher) borrowed(memb_no, isbn, date) Figure 3.20 Library database.
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