Library ER diagram
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This is a library ER diagram, designed to illustrate the relationships and attributes within a library system. The diagram includes key elements such as book information, including ISBN, title, authors, and publication details, as well as reader information, including ID, classification, and contact details. It also covers borrowing processes, detailing loan dates, renewal limits, and late penalties. Additionally, the diagram categorizes books by type, subject, and department, providing a comprehensive overview of the library's organizational structure. This ER diagram serves as a valuable resource for understanding and managing library operations efficiently.
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RULE
Book type number
Book Type Name
Price
deadline
Department
Publisher
Book author 3
Borrow
Number of volumes
Reader ID
Publication Date
belong to
Explanation
Reader classification information
Number of renewals
Book ISBN code
Reader types
Image address
Belong to
Reader's name
Subject Type
Late penalty
Book Author 2
Book Author 1
Contact number
Book subject classification information
Loan date
Type of collection
Reader type name
Actual repayment date
Content Introduction
Book Title
Book classification information
Reader type number
Borrowing权限
Reader information
Book Number
Email address
Book Information
Due Date
Collect
Collect
Collect
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