ERD

1. You recently started a soccer league in your community and want to track information at it relates to the coaches, teams, and players. For coaches, you want to know the name, address, phone numbers, license, DOB, age, and check to see if they passed their background check. For teams, you wish to know the name, gender, level, year of birth, and age. For players, you wish to know the name, address, email, phone numbers, and date of birth. In your league, players may play for only one team while teams have many players. Additionally, teams are coached by only one coach, but a coach may coach many teams.

2. You are the CEO of a multinational hotel empire. Your company offers hotel services to a variety of customers through different brand names. Recently, your company began to struggle, and it was decided you needed to make better business decisions. You realized your company doesnt have the proper database needed to assist in driving decisions; therefore, you tasked your team to come up with the proper ERD to capture the necessary information.

You would like to capture information on customers (including their name, address, phone numbers, email address, and age), hotel locations (including hotel name, address, phone numbers, and number of beds), and hotel brand (including brand name, and the name of the CEO of the brand name).

Customers may stay at many locations, and locations may serve many customers. Each location associates with a single brand, but each brand has multiple locations. As the CEO, you would also like to know the date each customer stayed at a location and the rate of the stay.