需求
“Create a school library media center ERD with the shown catalog, student, staff, loan, reservation, and media tables, their keys and attributes, and the shown relationships.”
接著試試Add textbook checkouts.Add classroom equipment loans.
這張圖裡有什麼
看懂背後的決策。
01
Used a separate Loan entity for borrowing transactions to record checkout/return dates.
02
Introduced a BookAuthor join table to support many-to-many relationship between books and authors.
03
Included a Reservation entity for books that are currently out, allowing members to reserve them.
Suitable for school or small public libraries that require basic cataloging and circulation tracking.