What is a database?

The term database first emerged in 1963. In principle, a database is a set of information, but for this information to be considered a database it must meet a series of characteristics and requirements regarding its content. and structure.

A database is, therefore, a set of information that meets a series of characteristics in order to be considered as such: first, the database must have this information structured and grouped. In addition, the data must belong to the same context and be stored in a way that allows it to be used later.

Databases are often used in the workplace and in , for example when storing employment information about the employees of a company or to manage a portfolio of clients, although its use is extended to practically any imaginable field.

Database types

The databases can be classified according to two criteria, such as their content and their variability:

Databases based on their content

Based on the content, the databases can be classified into four types:

  • Full text databases. They are databases that store primary sources of complete information.
  • Directory databases. These databases contain information such as phone numbers and records or similar listings.
  • Biographical databases. It contains information related to the biography of the authors, as well as a summary or extract of their publications.
  • Chemical and biological databases. These databases include chemical and biological records.

Databases based on their variability

Based on their variability, databases can be classified into two types.

  • Dynamic databases. Your data is periodically modified and updated. They are databases that can be consulted and edited.
  • Static databases. These databases are for reading and consulting only. Your data is not regularly modified.

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