Database – Data Model

The local city youth league needs a database system to help keep track of children who sign up to play basketball. Data needs to be kept on each team, the children who will play for each team, and their parents. Also, the 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 phone number
  • Parent: Parent ID number, Parent last name, Parent first name, Parent phone number, and home home address

Relationships to 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 Parents.

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