Databases · Database of Databases


	3store Abandoned	2003	Triplestore / RDF	Abandoned
	4store Abandoned	2009	Triplestore / RDF	Abandoned
	Cloud Datastore NoSQL	2013	Document / XML	NoSQL
	Cloud Firestore Serverless	2017	Document / XML	Serverless
	Cloud Memorystore Cache Hosting Service	—	—	Cache Hosting Service
	C-Store Abandoned	2005	Relational	Abandoned
	Histore Abandoned	2018	Key/Value	Abandoned
	H-Store NewSQL Abandoned OLTP	2006	Relational	NewSQL Abandoned OLTP
IN	Integrated Data Store	1964	Network
	jsonstore.io Abandoned	2018	Document / XML	Abandoned
	LeanStore OLTP	2018	Key/Value	OLTP
	Numstore Query Engine	2026	Array / Matrix	Query Engine
	ObjectStore Acquired Company	1988	Object-Oriented	Acquired Company
	RedStore Abandoned	2009	Triplestore / RDF	Abandoned
	ReductStore Time-Series AI-Assisted	2021	Key/Value	Time-Series AI-Assisted
	SingleStore OLAP NewSQL Acquired Company OLTP	2011	Document / XML, Key/Value, Multi-Value, Object-Oriented, Relational, Vector	OLAP NewSQL Acquired Company OLTP
	Terrastore Abandoned	2009	Document / XML	Abandoned