教材管理ER图
2017-05-18 16:27:34 73 举报教材管理的E-R图
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大纲/内容
class_name
storage_book
price
sup_name
phone_num
class
order_supplier
student_tel
book
author
books_num
storage
class_get_book
supplier
buyer_phone
purchase_order
publisher
book_id
trade_id
reciever_name
book_num
buy_date
class_book
purchase_book_list
name
order_book_list
form_id
address
get_book_date
telephone
sender_name
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