For example, the most popular data model, the relational data model, organizes information into related two-dimensional tables, whereas the graph data model organizes information into nodes (points) and edges (the lines connecting those points). There are many different types of databases, which are usually classified according to their underlying data models. The term data model describes the logical structure of a database, which determines the rules for how the information within can be organized and manipulated. Databases are how computers solve these two problems.īy definition, the data within a database needs to be arranged according to a consistent, logical set of underlying principles. However, a computer needs to store the information before that information can be referenced or changed, and it also needs to ensure that you can find the right information at the right time. Here’s another way to think about databases: a computer is a device that allows you to manipulate information, whether that information takes the form of words, numbers, pictures, or videos. What is a database?Ī database is a logically organized collection of information, designed in such a way that the information within can be accessed for later use by a computer program. And once you understand what databases are, you might even want to build your own databases, which will work just the way you need them to. If you work with information on a daily basis-and most of us do!-it’s worth understanding what databases are. The reason why databases are so common, for use cases big and small, is because they make accessing information using a computer much, much easier. In fact, if you found this page through an Internet search engine, your search was powered by a (very, very large) database.īut databases aren’t just for massive websites that serve millions of users per day-they can also be used by small businesses, or by a small group of people.
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If you spend a good amount of time on the computer, you probably interact with databases several times a day-if not several times per hour.ĭatabases power everything from banking software to scientific research to government records, as well as the websites you use every day, like Amazon, YouTube, Netflix, and Wikipedia. Your data will be more accurate, reliable, and easy to use if you have a database. A database is a collection of data that is organized so the information within can be easily accessed later.
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