Data Normalization

Order ID Order Date Customer ID Customer Name Product ID Product Desc. Product Price Quantity Ordered 1006 10/24/10 2 Value Furniture 7 5 4 Dining Table Writers Desk Entertain Center 800.00 325.00 650.00 2 2 1 1007 10/25/10 6 Furniture Gallery 11 4 4 Drawer Dresser Entertain Center 500.00 650.00 4 3 1. What errors prevent the table displayed above from being first normal form compliant? 2. List all the functional dependencies present in the table. 3. List all the candidate keys. 4. Describe the steps you would take to bring the table into first normal form compliance. Display the resulting first normal form compliant table or tables, identifying primary and foreign keys. 5. What error(s), if any, prevent the now first normal form compliant table or tables from being second normal form compliant? 6. List all the functional dependencies present in the first normal form compliant table(s). 7. List all the candidate keys. 8. Describe the steps you would take to bring the table(s) into second normal form compliance. Display the resulting second normal form compliant table or tables, identifying primary and foreign keys. 9. What error(s), if any, prevent the now second normal form compliant table or tables from being third normal form compliant? 10. List all the functional dependencies present in the second normal form compliant table(s). 11. List all the candidate keys. 12. Describe the steps you would take to bring the table(s) into third normal form compliance. Display the resulting third normal form compliant table or tables, identifying primary and foreign keys. Whatsamatter U also has a number of students, of course. The table on the following page lists the information gathered for each student, plus 5 sample records. Some business rules that Whatsamatter U follows includes:  Each student has a unique ID number  A student has only a single advisor, but an advisor can have either zero or many students.  Advisors are always faculty members (professors)  A student can have only a single major but, of course, many students can have the same major  A student can take a course more than once Table 1 Students StudentID Name eMail Department Major AdvisorID Advisor CoursesTaken N112233 Rocky Squirrel squirrel@wmu.edu GSCIS Information Systems P123 John Data MMIS630 MMIS620 N121212 Bullwinkle Moose moose@wmu.edu Business Accounting P456 Carl Numbers ACCT810 MMIS630 N212121 Natasha Badenof Nat@Bad.net GSCIS Information Systems P123 John Data MMIS630 MCIS610 N234432 Boris Badenof Boris@Bad.net GSICS Computer Science P789 Rich Geek MCIS610 Using the above business rules and the data in Table 1 on the following page, do the following: 1. What errors prevent the table displayed above from being first normal form compliant? 2. List all the functional dependencies present in the table. 3. List all the candidate keys. 4. Describe the steps you would take to bring the table into first normal form compliance. Display the resulting first normal form compliant table or tables, identifying primary and foreign keys. 5. What error(s), if any, prevent the now first normal form compliant table or tables from being second normal form compliant? 6. List all the functional dependencies present in the first normal form compliant table(s). 7. List all the candidate keys. 8. Describe the steps you would take to bring the table(s) into second normal form compliance. Display the resulting second normal form compliant table or tables, identifying primary and foreign keys. 9. What error(s), if any, prevent the now second normal form compliant table or tables from being third normal form compliant? 10. List all the functional dependencies present in the second normal form compliant table(s). 11. List all the candidate keys. 12. Describe the steps you would take to bring the table(s) into third normal form compliance. Display the resulting third normal form compliant table or tables, identifying primary and foreign keys.