Glossary term
What is NoSQL ("Not only SQL")?
NoSQL stands for "Not only SQL".
Non-relational databases: key-value, document, wide-column, graph. Example: Redis, MongoDB, Cassandra, Neo4j.
Learn it properly · System DesignLesson 20: SQL vs NoSQL: Picking the Right Data Model“SQL or NoSQL?” is the wrong question; the right one is “what shape is my data, and how will I read and write it?” The relational model and the four NoSQL families — key-value, document, wide-column and graph — what each is good at, the myths to drop, and a sensible default.