Tags: Genre, Music Genre, Topical Concept.
A NoSQL or Not Only SQL database provides a mechanism for storage and retrieval of data that is modeled in means other than the tabular relations used in relational databases. Motivations for this approach include simplicity of design horizontal scaling and finer control over availability. The data structure (e.g. tree graph key-value) differs from the RDBMS and therefore some operations are faster in NoSQL and some in RDBMS.