primary key and foreign key

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I have 3 tables

   Student    Loan    Book
 - StudentID  LoanID  BookID

which foreign keys do i need to set so when given the student name, sea

4条回答

2021-01-25 06:33

Student
--------      
Studentid -PK

Loan
---------
Loanid  - PK
Studentid -FK


Book
-------
Bookid  -PK
Loanid   -FK

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