Types of Databases
FAQs
There are three different types of databases: hierarchical, relational, and non-relational. Others include the object oriented database, personal database, and centralized database.
MongoDB is a NoSQL distributed database that stores data as BSON documents. BSON is a binary representation of JSON (JavaScript Object Notation). The document model grants it the ability to store data that adheres to a user-defined format while being flexible enough to evolve as an application’s needs change.
Data can have one of three different types of relationships: one-to-one, where one record matches another record; one-to-many, where one record can match with any number of other records; and many-to-many, where more than one record can have relationships with each other.
Relational databases are more common among the different types of databases. However, the popularity of the non-relational database is on the rise. The type of database you choose depends on your needs and goals.
They typically provide strong consistency, also known as immediate consistency. Non-relational typically provides eventual consistency.
The four categories are key-value databases, document databases, wide-column stores, and graph databases.
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