NoSQL databases
Organizations now handle more than structured data. NoSQL databases store unstructured data in documents rather than relational tables, where we store structured data. So, we categorize them as “more than just SQL” and decompose them into various flexible data models. NoSQL database types include document-only databases, key-value stores, wide-column databases, and chart databases. NoSQL databases are built from the ground up to store and process vast amounts of data at scale, supporting the ever-growing modern business.
The following are definitions for the most popular types of NoSQL databases:
- Key-value store: A key-value store groups related data into collections so that records can be identified by unique keys for easy retrieval. A key-value store retains the benefits of a NoSQL database structure, yet has enough structure to reflect the values of relational databases (as opposed to non-relational databases). We can see an example in the...