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INSTRUCTIONS Given the following INVOICE table structure, assume that the table does not contain repeating groups and that an invoice number may contain more than one product. Also assume any given product is supplied by a single vendor but a vendor can supply many products: INV_NUM PROD_NUM SALE_DATE 211347 AA-E3422QW 15-Jan-10 211347 QD-300932X 15-Jan-10 211347 RU-995748G 15-Jan-10 211348 AA-E 3422QW 15-Jan-10 211349 GH-778345P 16-Jan-10 Table 1: Sample INVOICE RECORDS PROD_LABEL VEND_COD E Rotary sander 1211 0.25-in drill bit 211 Band saw 309 Rotary sander 211 Power drill 157 VEND_NAME QUANT_SOLD PROD_PRICE NeverFail, Inc. 1 $49.95 Never Fail, Inc. 8 $3.45 BeGood, Inc. $39.99 Never Fail, Inc. 2 $49.95 ToughGo, Inc. $87.75 1 1. Write the relational schema, and underline the PK. [5 pts] InvoiceRecord (....... 2. Draw the dependency diagram and identify all dependencies, including all partial and transitive dependencies. The following first symbol can be used to draw full dependency and the second symbol can be use to draw partial or transitive dependency. Copy those symbols and resize them as you see fit to add the dependencies. If arrows overlap, change the color. [15 pts] Pick one (Partial/trans) VEND_COD INV_NUM PROD_NUM SALE_DATE PROD_LABEL VEND_NAME QUANT_SOLD PROD_PRICE 3. Convert from INF to 2NF by removing all partial dependencies. [15 pts] draw the dependency diagrams for any new table created, Rewrite the schema for invoiceRecord table and draw its dependency diagram. Identify the normal forms for each table structure you obtain at the end of this stage. 4. Convert from 2NF to 3NF by removing all transitive dependencies. [10 pts] draw the dependency diagram for the new table. Rewrite the schema for the table that had transitive dependency and draw its dependency diagram. 5. Use Microsoft Visio to draw the Crow's Foot ERD. INSTRUCTIONS Given the following INVOICE table structure, assume that the table does not contain repeating groups and that an invoice number may contain more than one product. Also assume any given product is supplied by a single vendor but a vendor can supply many products: INV_NUM PROD_NUM SALE_DATE 211347 AA-E3422QW 15-Jan-10 211347 QD-300932X 15-Jan-10 211347 RU-995748G 15-Jan-10 211348 AA-E 3422QW 15-Jan-10 211349 GH-778345P 16-Jan-10 Table 1: Sample INVOICE RECORDS PROD_LABEL VEND_COD E Rotary sander 1211 0.25-in drill bit 211 Band saw 309 Rotary sander 211 Power drill 157 VEND_NAME QUANT_SOLD PROD_PRICE NeverFail, Inc. 1 $49.95 Never Fail, Inc. 8 $3.45 BeGood, Inc. $39.99 Never Fail, Inc. 2 $49.95 ToughGo, Inc. $87.75 1 1. Write the relational schema, and underline the PK. [5 pts] InvoiceRecord (....... 2. Draw the dependency diagram and identify all dependencies, including all partial and transitive dependencies. The following first symbol can be used to draw full dependency and the second symbol can be use to draw partial or transitive dependency. Copy those symbols and resize them as you see fit to add the dependencies. If arrows overlap, change the color. [15 pts] Pick one (Partial/trans) VEND_COD INV_NUM PROD_NUM SALE_DATE PROD_LABEL VEND_NAME QUANT_SOLD PROD_PRICE 3. Convert from INF to 2NF by removing all partial dependencies. [15 pts] draw the dependency diagrams for any new table created, Rewrite the schema for invoiceRecord table and draw its dependency diagram. Identify the normal forms for each table structure you obtain at the end of this stage. 4. Convert from 2NF to 3NF by removing all transitive dependencies. [10 pts] draw the dependency diagram for the new table. Rewrite the schema for the table that had transitive dependency and draw its dependency diagram. 5. Use Microsoft Visio to draw the Crow's Foot ERD