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vide an Entity-Relationship Model for a motor sport fan, based on the description in Table 1 on the next page. Present the model in the form of an Entity-Relationship diagram in Chen notation. Make sure to identify special attributes (including keys) in the diagram and include participation and cardinality con- straint annotations for your relationships.

vide an Entity-Relationship Model for a motor sport fan, based on the description in Table 1 on the next page. Present the model in the form of an Entity-Relationship diagram in Chen notation. Make sure to identify special attributes (including keys) in the diagram and include participation and cardinality con- straint annotations for your relationships.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Provide an Entity-Relationship Model for a motor sport fan, based on
the description in Table 1 on the next page.
Present the model in the form of an Entity-Relationship diagram in
Chen notation. Make sure to identify special attributes (including
keys) in the diagram and include participation and cardinality con-
straint annotations for your relationships.

Specification A race has a name and must take place at a single race course at a specific date and at a specific starting time. A race has a certain num- ber of laps (around the race course) and a total length in miles. No two races of the same name take place on the same day. A race course has a unique name, a location, and a length in miles. For each driver, we keep the name, consisting of first and last name, nationality, date of birth and a unique driver identifier. Drivers always belong to a single racing team. We need to find out which driver drove which car in which race. We also need to store in which place they ar- rived at the finish (non-finishers are recorded as arrived in 0-th place). Drivers drive at most one car in a race but not all drivers do. There are no driver swaps during a race but at different races different drivers may be driving the same car. The type of tyres on the car at the start of the race is recorded as well as the car's racing number for that particular race. Cars have a unique identifier and must belong to a racing team. The make of the engine of a car is relevant too. Not every car is necessarily driven in a race. A car may complete a lap of a race in which case the lap time and fuel consumption are to be recorded. A car may have a pit stop during a lap in a race, in which case the duration of the pit stop and the items that have been changed during the pit stop (tyres, front nose, etc.) are recorded. A car may retire in a lap of a race, in which case the reason for the retirement is to be recorded. In all these cases, we need to know in which lap of which race this occurred. Important aspects of a racing team are its name and the address of the team's headquarter consisting of postcode, street name, house num- ber. Racing teams may be entered on the database before any drivers or cars are assigned to them.
Transcribed Image Text:Specification A race has a name and must take place at a single race course at a specific date and at a specific starting time. A race has a certain num- ber of laps (around the race course) and a total length in miles. No two races of the same name take place on the same day. A race course has a unique name, a location, and a length in miles. For each driver, we keep the name, consisting of first and last name, nationality, date of birth and a unique driver identifier. Drivers always belong to a single racing team. We need to find out which driver drove which car in which race. We also need to store in which place they ar- rived at the finish (non-finishers are recorded as arrived in 0-th place). Drivers drive at most one car in a race but not all drivers do. There are no driver swaps during a race but at different races different drivers may be driving the same car. The type of tyres on the car at the start of the race is recorded as well as the car's racing number for that particular race. Cars have a unique identifier and must belong to a racing team. The make of the engine of a car is relevant too. Not every car is necessarily driven in a race. A car may complete a lap of a race in which case the lap time and fuel consumption are to be recorded. A car may have a pit stop during a lap in a race, in which case the duration of the pit stop and the items that have been changed during the pit stop (tyres, front nose, etc.) are recorded. A car may retire in a lap of a race, in which case the reason for the retirement is to be recorded. In all these cases, we need to know in which lap of which race this occurred. Important aspects of a racing team are its name and the address of the team's headquarter consisting of postcode, street name, house num- ber. Racing teams may be entered on the database before any drivers or cars are assigned to them.
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