Course Solutions Uncategorized (Solved) : 1 Choose Key Write Dependencies Following 10 Grades Relation Grades Student Id Course Sem Q30144254 . . . .

(Solved) : 1 Choose Key Write Dependencies Following 10 Grades Relation Grades Student Id Course Sem Q30144254 . . . .

 

1. Choose a key and write the dependencies for the following: (10) a. GRADES relation: GRADES (Student-ID, Course#, Semester#, Grade) b. LINE_ITEMS relation: LINE ITEMS (PO_Number, ItemNum, PartNum, Description, Price, Qty) 2. Choose a key and write the dependencies for the following SOFTWARE relation (assume all of the vendors products have the same warranty): (15) SOFTWARE (SoftwareVendor, Product, Release, SystemReq, Price, Warranty) SoftwareVendor, Product, Release -> SystemReq, Price, Warranty 3. Consider the following relation: Shipping (ShipName, ShipType, VoyagelD, Cargo, Port, Date) Hint: Date is the date the ship arrives in the given Port With the functional dependencies ShipNameShipType VoyagelDShiName, Cargo ShipName, Date -> VoyagelD, Port (a) Identify the candidate keys. (5) (b) Normalize to 2NF. (10) (c) Normalize to 3NF. (10)

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