1. To keep track of sales, ABC Incorporated, an on-line company, uses the table structure shown below. Assuming that the sample data are representative, draw a dependency diagram in Visio that shows all functional dependencies including both partial and transitive dependencies. (Hint: Look at the sample values to determine the nature of the relationships.)

Attribute Name

Sample Value

Sample Value

Sample Value

Sample Value

Sample Value

INV_NUM

211347

211347

211347

211348

211349

PROD_NUM

AA-E3422QW

QD-300932X

RU-995748G

AA-E3422QW

GH-778345P

SALE_DATE

15-Jan-2006

15-Jan-2006

15-Jan-2006

15-Jan-2006

16-Jan-2006

PROD_LABEL

Rotary sander

0.25-in. drill bit

Band saw

Rotary sander

Power drill

VEND_CODE

211

211

309

211

157

VEND_NAME

NeverFail, Inc.

NeverFail, Inc.

BeGood, Inc.

NeverFail, Inc.

ToughGo, Inc.

QUANT_SOLD

1

8

1

2

1

PROD_PRICE

$49.95

$3.45

$39.99

$49.95

$87.75

2. Using the initial dependency diagram drawn in question 1, remove all partial dependencies, draw the new dependency diagrams in Visio, and identify the normal forms for each table structure you created.

3. Using the table structures you created in question 2, remove all transitive dependencies, and draw the new dependency diagrams in Visio. Also, identify the normal forms for each table structure you created. If necessary, add or modify attributes to create appropriate determinants or to adhere to the naming conventions.

4. Using the results of question 3, draw the fully labeled Crow's Foot ERD in Visio. The diagram must include all entities, attributes, and relationships. Primary keys and foreign keys must be clearly identified on the diagram.

1. To keep track of sales, ABC Incorporated, an on-line company, uses the table structure shown below. Assuming that the sample data are representative, draw a dependency diagram in Visio that shows all functional dependencies including both partial and transitive dependencies. (Hint: Look at the sample values to determine the nature of the relationships.) Attribute Name Sample Value Sample Value Sample Value Sample Value Sample Value INV_NUM 211347 211347 211347 211348 211349 PROD_NUM AA-E34220W QD-300932X RU-995748G AA-E3422QW GH-778345P SALE DATE 15-Jan-2006 15-Jan-2006 15-Jan-2006 15-Jan-2006 16-Jan-2006 PROD LABEL Rotary sander 0.25-in. drill bit Band saw Rotary sander Power drill VEND CODE 211 211 309 211 157 VEND NAME NeverFail, Inc. NeverFail, Inc. BeGood, Inc. NeverFail, Inc. ToughGo, Inc. QUANT SOLD PROD_PRICE $49.95 $3.45 $39.99 $49.95 $87.75 2. Using the initial dependency diagram drawn in question 1, remove all partial dependencies, draw the new dependency diagrams in Visio, and identify the normal forms for each table structure you created. 3. Using the table structures you created in question 2, remove all transitive dependencies, and draw the new dependency diagrams in Visio. Also, identify the normal forms for each table structure you created. If necessary, add or modify attributes to create appropriate determinants or to adhere to the naming conventions. 4. Using the results of question 3, draw the fully labeled Crow's Foot ERD in Visio. The diagram must include all entities, attributes, and relationships. Primary keys and foreign keys must be clearly identified on the diagram