需求
“A university library database with books, copies, authors, members, loans, reservations, and fines, showing how members borrow and reserve copies.”
接著試試Add a library branch for each copyAdd a notification for reservation availability
這張圖裡有什麼
看懂背後的決策。
01
Modeled many-to-many between Book and Author using BookAuthor join table with composite PK
02
Used separate Category table to classify books
03
Loan table tracks checkout/due/return dates and status
When designing a database for library management systems with book catalog, member tracking, and loan processing.