Table 4-3 contains sample data for parts and for vendors who supply those parts. In discussing these data with users, we find that part numbers (but not descriptions) uniquely identify parts and that vendor names uniquely identify vendors.

a. Convert this table to a relation (named PART SUPPLIER) in first normal form. Illustrate the relation with the sample data in the table.

b. List the functional dependencies in PART SUPPLIER and identify a candidate key.

c. For the relation PART SUPPLIER, identify each of the following: an insert anomaly, a delete anomaly, and a modification anomaly.

d. Draw a relational schema for PART SUPPLIER and show the functional dependencies.

e. In what normal form is this relation?

f. Develop a set of 3NF relations from PART SUPPLIER.

g. Show the 3NF relations using Microsoft Visio (or any other tool specified by your instructor).

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Sample Data for Parts and Vendors TABLE 4-3 Part No 1234 Address Cupertino Phoenix Cupertino Austin Phoenix Unit Cost Description Logic chip Vendor Name Fast Chips Smart Chips Fast Chips Quality Chips Smart Chips 10.00 8.00 3.00 2.00 5.00 5678 Memory chip