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Date added: 30.3.2015
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The aim of this book is to explain how individual items of information e.g names of individuals or organisations can be linked to other items of information for whatever purposes the data collector may have in mind, be it commercial or legalMoreThe aim of this book is to explain how individual items of information e.g names of individuals or organisations can be linked to other items of information for whatever purposes the data collector may have in mind, be it commercial or legal documentation, sporting achivements or research papers. Knowing when and where events or transactions take place, who or what are involved and being able to then refer back to that information is necessary in many different contexts. To illustrate how databases may be constructed and populated, the staging of football competitions, a world-wide phenomenon and explicable to most adults, will be used here to illustrate how the different types of entities e.g. games, goals, venues and teams required to stage and document competitions are related. The data models, diagrams showing the associations between the different types of entities, should explain to non-database specialists what data is being collected and how it may be used. Data Models 101 by Viji Kumar
