29 Jan A2. Underline all primary ke
Database Design And Development
Task A – ER Diagram
The local council is planning to implement a database system to help track players that sign up to play soccer. Data needs to be maintained for each team, the players their parents. Also, data needs to be stored for the coaches for each team.
Consider the following set of requirements to maintain this database:
· A Team is made up of many Players, and also has a Coach, and each Player has a Parent.
· Each Team has an ID number, name, and colours.
· Each Player has an ID number, first name, last name, and age.
· Each Coach has an ID number, first name, last name, and home phone number.
· Each Parent has an ID number, last name, first name, Home phone number, and Home Address (Street, City, State, and Postal Code).
· A Player must have one and only one Team.
· A Team must have many Players.
· A Team may or may not have a Coach.
· A Coach must have one and only one Team.
· A Team may have many Coaches.
· A Player must have at least one Parent, possibly more.
· A Parent must have a Player.
According to the information above, draw a corresponding ER diagram. Please note:
A1. You may decide the names for entities, attributes and relations, but you should use UPPERCASE to name your entities and use Capitalisation (of first letter) to name attributes of entities.
A2. Underline all primary key attributes and mention all the foreign key attributes.
A3. Clearly indicate participation and cardinalities between entities. Also specify the relationship verbs.
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