Library Database (cont’d)

• Step 6. Draw completed E-R diagram - resolve M:N relationships

AuthorID, ...

ISBN, ...

AuthorID,ISBN, ...

AUTHOR

BOOK

M

1

(0,N)

(0,N)

PublisherID, ...

M

1

(1,1)

(0,N)

1

M

(1,1)

(1,1)

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