Design an En@ty Rela@onship and Rela@onal model of a database that manages informa@on about publishers, authors and books. Some informa@on includes: A publisher has a name and an address for the headquarters. Each publisher also has a set of branches, each branch having an address and two phone numbers. An author has a name and an address. A book is published by a publisher and has a list of authors associated with it. An author can publish several books and a book can be published by at most one publisher
Design an En@ty Rela@onship and Rela@onal model of a database that manages informa@on about publishers, authors and books. Some informa@on includes: A publisher has a name and an address for the headquarters. Each publisher also has a set of branches, each branch having an address and two phone numbers. An author has a name and an address. A book is published by a publisher and has a list of authors associated with it. An author can publish several books and a book can be published by at most one publisher
Chapter2: Database Design Fundamentals
Section: Chapter Questions
Problem 11RQ
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a)Design an En@ty Rela@onship and Rela@onal model of a
publishers, authors and books. Some informa@on includes:
A publisher has a name and an address for the headquarters. Each publisher also has a set of branches,
each branch having an address and two phone numbers. An author has a name and an address. A book is
published by a publisher and has a list of authors associated with it. An author can publish several books
and a book can be published by at most one publisher.
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