GQL (graph query language)
GQL (Graph Query Language) is the ISO/IEC 39075:2024 standard declarative language for property graph databases, descended from Cypher and sharing its GPML pattern matching with SQL/PGQ; the first new ISO database language since SQL.
GraphQL
GraphQL is a query language and execution engine for APIs, created at Facebook in 2012, open-sourced in 2015, and governed by the GraphQL Foundation since 2019.
NoSQL
NoSQL, or "not only SQL," is an umbrella term for non-relational databases that store data as documents, key-value pairs, wide columns, or graphs, and typically scale horizontally across many servers.
SPARQL
SPARQL (SPARQL Protocol and RDF Query Language) is the W3C-standardized query language and associated HTTP protocol for querying RDF graph data, a W3C Recommendation since 2008 and the standard query language for Linked Data.