Final project new.doc - 1 Updated data schema Book(BookNum...

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1. Updated data schema Book (BookNum, BookName, BookAmount, PurchasePrice, SalesPrice, PublishingDate) Primary Key: BookNum Author (AuthorNum, AuthorName, BookNum, PubNum) Primary Key: AuthorNum Foreign Key: BookNum References Book PubNum References Publishing Publishing (PubNum, BookNum) Primary Key: PubNum Foreign Key: BookNum References Book Employee (EmpNum, EmpName, EmpAddress, EmpPhone) Primary Key: EmpNum Supplier (SupplierNum, SupplierName, SupplierPhone) Primary Key: SupplierNum Purchase (PurchaseNum, SupplierNum, EmpNum, BookNum, Purchasedate, Purchaseprice, Purchaseamount) Primary Key: PurchaseNum Foreign Key: SupplierNum References Supplier EmpNum References Employee BookNum References Book Customer (Student ID, CustomerName, CustomerGender, CustomerPhone) Primary Key: Student ID SalesInvoice (SalesNum, Student ID, EmpNum, SalesDate, SalesPrice, SalesAmount) Primary Key: SalesNum Foreign Key: Student ID References Customer EmpNum References Employee Cash Receipt (CashreNum, CashreAmount, EmpNum, Student ID) Primary Key: CashreNum
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