Database Design Discusion Post and Assignment

Discusion Post: Data as a Corporate Resource and Foreign Keys

Please respond to BOTH of the following questions:

Question A

Discuss how data can be a corporate resource and describe how it differs from other corporate resources.

Question B

Foreign keys make the elimination of redundant data possible. But aren't foreign keys themselves duplicate data? Discuss the natural duplication of values presented by using foreign keys and if you believe this is a form of data redundancy.

Sample Databases Assignment

Part 1

Come up with an original example of a one to many unary relationship. Create an example model of this relationship using the MySQL Workbench data modeler.

Part 2

Come up with an original example of a ternary relationship. Create an example model of this relationship using the MySQL Workbench data modeler.

Part 3

Using MySQL Workbench - create a data model for on Adult Baseball league which supports all of the following data requirements:

Teams

• A team has a unique number associated with it
• Team Name
• Team City
• Each team has more than one player associated with it

Players

• Each Player has a unique number
• A player may play or have played for more than one team
• The number of years and batting average is tracked for each team the player played for.

Coaches

• In this league, all coaches are also players.
• A Team can have more than one coach.

Bats

• A team can have multiple bats
• Each bat is identified by a unique serial number.

For each of the three models above, you should export your model as a single page PDF and submit the resulting files.