Evolution of Databases
By Eric Rodrigo Muñoz Evolution of Databases According to the definition from Wordreference, “a database is a collection of organised, related data in electronic form that can be gathered, analysed or retrieved by a computer” . So electronics generate data, and databases are able to storage and manage this information with many different purposes. But why humans have the need to storage information? When databases were originated? What is the future of them? We will go through all this question in this blogpost. Shall we start? History of Databases Types of models Type 1: Hierarchical model In this model, data is organised like an organisational chart. So it works like an inverted tree, and the top is known as ROOT. Each rectangle represents an entity, such as “director”, “manager” and “worker” and represents parent/child relationships (which ones are subordinate to another, according to the hierarchy). For a database, an entity is the equivalent of a...