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Normalization Exercise

Normalization Exercise. Consider the following 3NF relations about a sorority or fraternity. MEMBER( member_ID , Name,Address , Dues_Owed ) OFFICE( Office_Name , Officer_ID , Term_Start_Date , Budget) EXPENSE( Ledger_Number , Office_Name , Expense_Date , Amt_Owed )

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Normalization Exercise

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  1. Normalization Exercise • Consider the following 3NF relations about a sorority or fraternity. • MEMBER(member_ID, Name,Address, Dues_Owed) • OFFICE(Office_Name, Officer_ID, Term_Start_Date, Budget) • EXPENSE(Ledger_Number, Office_Name, Expense_Date, Amt_Owed) • PAYMENT(Check_Number, Expense_Ledger_Number, Amt_Paid) • RECEIPT(Member_ID, Receipt_Date, Dues_Received) • COMMITTEE(Committee_ID, Officer_in_Charge) • WORKERS( Committee_ID, Member_ID) • Foreign keys are not indicated in these relations. Decide which attributes are foreign keys and justify this. • Draw an ER diagram for these relations, using your answer to problem 1 • Explain the assumptions you made about cardinalities in your answer to problem 2. Can you see why ER diagrams are considered more semantically rich than the relational model.

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