A type of database that provides a mechanism for storage and retrieval of data that is modeled in means other than the tabular relations used in relational databases.

"NoSQL databases are often used for large sets of distributed data and are optimized for insert and retrieve operations at a large scale."

A class of database management systems that do not conform to the traditional relational database model, often used for storing and retrieving data that is more suited to hierarchical, key-value, wide-column, or document-oriented formats.

"NoSQL databases are chosen for large sets of distributed data, where relational databases might not be as efficient in terms of scalability and speed."