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The local city youth league needs a database system to help track children who sign up to play soccer. Data needs to be kept on each team, the children who will play on each team, and their parents. Also, data needs to be kept on the coaches for each team. Draw a data model with the entities and attributes described here. Entities required: Team, Player, Coach, and Parent Attributes required: Team: Team ID number, Team name, and Team colors Player: Player ID number, Player first name, Player last name, and Player age Coach: Coach ID number, Coach first name, Coach last name, and Coach home phone number Parent: Parent ID number, Parent last name, Parent first name, Home phone number, and Home address (Street, City, State, and Zip code) The following relationships must be defined: Team is related to Player. Team is related to Coach. Player is related to Parent. Connectivities and participations are defined as follows: A Team may or may not have a Player. A Player must have a Team. A Team may have many Players. A Player has only one Team. A Team may or may not have a Coach. A Coach must have a Team. A Team may have many Coaches. A Coach has only one Team. A Player must have a Parent. A Parent must have a Player. A Player may have many Parents. A Parent may have many Players.

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Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482

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Chapter
Section
BuyFindarrow_forward

Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482
Chapter 4, Problem 21RQ
Textbook Problem
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The local city youth league needs a database system to help track children who sign up to play soccer. Data needs to be kept on each team, the children who will play on each team, and their parents. Also, data needs to be kept on the coaches for each team.

Draw a data model with the entities and attributes described here.

Entities required: Team, Player, Coach, and Parent

Attributes required:

Team: Team ID number, Team name, and Team colors

Player: Player ID number, Player first name, Player last name, and Player age

Coach: Coach ID number, Coach first name, Coach last name, and Coach home phone number

Parent: Parent ID number, Parent last name, Parent first name, Home phone number, and Home address (Street, City, State, and Zip code)

The following relationships must be defined:

  • Team is related to Player.
  • Team is related to Coach.
  • Player is related to Parent.

Connectivities and participations are defined as follows:

  • A Team may or may not have a Player.
  • A Player must have a Team.
  • A Team may have many Players.
  • A Player has only one Team.
  • A Team may or may not have a Coach.
  • A Coach must have a Team.
  • A Team may have many Coaches.
  • A Coach has only one Team.
  • A Player must have a Parent.
  • A Parent must have a Player.
  • A Player may have many Parents.
  • A Parent may have many Players.

Explanation of Solution

Entity Relational (ER) Diagram:

The following figure illustrates the ER Diagram for given business rules in Crow’s Foot notation:

Explanation:

The above ER diagram contains several entities such as “PARENT”, “REGISTER”, “PLAYER”, “COACH”, “TEAM” and “COLOR”. Each entity has its own attribute.

  • The relationship between “PARENT” and “PLAYER” is M: N...

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