Database question

2. Using the descriptions of the attributes given in the figure, convert the ERD shown in P6.2 into a dependency that is in at least 3NF. 3.3. Using the INVOICE table structure shown in Table P6.3 do the following: a. Write the relational schema, draw its dependency diagram, and identify all dependencies, including all partial and transitive dependencies. You can assume the table does not contain repeating groups and that an invoice number references more than 1 product. (Hint: This table uses a composite primary keys.) 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. c. Remove all transitive dependencies, write the relational schema, and draw the new dependency diagrams. Also identify the normal forms for each table structure you created. d. Draw the Crow’s Foot ERD. PG’s 215 aqnd 216 of Database Systems book 10e

 

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