What type of database is not relational?

What are the four non-relational database types?

There are four big NoSQL types: key-value store, document store, column-oriented database, and graph database. Each type solves a problem that can't be solved with relational databases.

Is NoSQL a relational database?

SQL databases are known as relational databases, and have a table-based data structure, with a strict, predefined schema required. NoSQL databases, or non-relational databases, can be document based, graph databases, key-value pairs, or wide-column stores.

What is the opposite of a relational database?

Non-relational databases are also known as NoSQL databases which stands for “Not Only SQL.” Where relational databases only use SQL, non-relational databases can use other types of query language. There are four different types of NoSQL databases.

What is non structural database?

NoSQL databases (aka "not only SQL") are non-tabular databases and store data differently than relational tables. NoSQL databases come in a variety of types based on their data model. The main types are document, key-value, wide-column, and graph.