Normalize a set of data to 1st, 2nd and 3rd normal form by creating relational schemas, dependency diagrams and an Entity Relationship Diagram (crows foot notation).

For this Problem, be sure to complete each letter (a thru d) for the problem. The ERD for letter d must be completed with the use of Microsoft Visio.

Reminder:

Normalize a set of data to 1st, 2nd and 3rd normal form by creating relational schemas, dependency diagrams and an Entity Relationship Diagram (crows foot notation).

For this Problem, be sure to complete each letter (a thru d) for the problem. The ERD for letter d must be completed with the use of Microsoft Visio.

3. Using the INVOICE table structure shown in Table P6.3, do the following TABLE P6.3 ATTRIBUTE SAMPLE VALUE SAMPLE VALUE SAMPLE VALUE SAMPLE VALUE SAMPLE VALUE NAME INV_NUM PROD_NUM AA-E3422QW SALE_DATE PROD LABEL Rotary sander VEND CODE211 VEND NAME NeverFail, Inc. QUANT_SOLD1 PROD_PRICE $49.95 211347 211347 QD-300932X 15-Jan-2016 0.25-in. drill bit 211 NeverFail, Inc 211347 RU-995748G 15-Jan-2016 Band saw 309 BeGood, Inc. 211348 AA-E3422QW 15-Jan-2016 Rotary sander 211 NeverFail, Inc 211349 GH-778345P 16-Jan-2016 Power drill 157 ToughGo, Inc. 15-Jan-2016 $3.45 $39.99 $49.95 $87.75 a. Write the relational schema, draw its dependency diagram, and identify all dependencies, including all partial and transitive dependencies. You can assume that the table does not contain repeating groups and that an invoice number ref- erences more than one product. (Hint: This table uses a composite primary key.) b. Remove all partial dependencies, write the relational schema, and draw the new dependency diagrams. Identify the normal forms for each table structure you created. ote You can assume that any given product is supplied by a single vendor, but a vendor can supply many products. Therefore, it is proper to conclude that the following dependency exists PROD-NUM-> PROD-LABEL, PROD-PRICE, VEND-CODE, VEND-NAME (Hint: Your actions should produce three dependency diagrams.) c. Remove all transitive dependencies, write the relational schema, and draw the new dependency diagrams. Also identify the normal forms for each table struc ture you created. d. Draw the Crow's Foot ERD