Databases with Snapshot Isolation Isolation Levels


	AllegroGraph	2004	Triplestore / RDF	Snapshot Isolation
	AlloyDB OLAP Forked Code OLTP	2022	Relational	Read Committed, Read Uncommitted, Repeatable Read, Serializable	OLAP Forked Code OLTP
	Atoti OLAP	2005	Relational	Snapshot Isolation	OLAP
	Azure HorizonDB	2026	Relational	Read Uncommitted, Read Committed, Serializable, Snapshot Isolation, Repeatable Read
	Azure SQL Database Hosting Service	2009	Relational	Read Committed, Read Uncommitted, Repeatable Read, Serializable, Snapshot Isolation	Hosting Service
	BadgerDB AI-Assisted	2017	Key/Value	Serializable, Snapshot Isolation	AI-Assisted
	Bedrock Blockchain OLTP AI-Assisted	2016	Relational	Serializable, Snapshot Isolation, Read Uncommitted	Blockchain OLTP AI-Assisted
	Berkeley DB Acquired Company OLTP DBM	1994	Document / XML, Key/Value	Serializable, Snapshot Isolation	Acquired Company OLTP DBM
	BigchainDB Abandoned Blockchain	2015	Document / XML, Key/Value	Snapshot Isolation, Read Uncommitted	Abandoned Blockchain
	Blazegraph Acquired Company Abandoned	2006	Graph, Triplestore / RDF	Snapshot Isolation	Acquired Company Abandoned
	Cloudant Acquired Company OLTP NoSQL	2008	Document / XML	Snapshot Isolation	Acquired Company OLTP NoSQL
	Cloud Spanner NewSQL	2007	—	Snapshot Isolation	NewSQL
	CockroachDB NewSQL OLTP AI-Assisted	2014	Relational	Read Committed, Serializable, Snapshot Isolation	NewSQL OLTP AI-Assisted
	Cosmos DB	2015	Key/Value, Graph, Column Family / Wide-Column	Snapshot Isolation
	CouchDB NoSQL	2005	Document / XML	Snapshot Isolation	NoSQL
	CovenantSQL Abandoned Blockchain	2018	Relational	Serializable, Snapshot Isolation, Read Uncommitted	Abandoned Blockchain
	C-Store Abandoned	2005	Relational	Snapshot Isolation	Abandoned
	Cubrid AI-Assisted	2008	Relational	Read Committed, Serializable, Snapshot Isolation, Repeatable Read	AI-Assisted
	Delta Lake AI-Assisted	2019	Column Family / Wide-Column	Serializable, Snapshot Isolation	AI-Assisted
	DGraph Acquired Company AI-Assisted	2015	Graph	Snapshot Isolation	Acquired Company AI-Assisted
	DuckDB OLAP AI-Assisted	2018	Relational	Snapshot Isolation	OLAP AI-Assisted
	Elasticsearch Search Engine NoSQL AI-Assisted	2004	Document / XML	Snapshot Isolation	Search Engine NoSQL AI-Assisted
	Espresso	2011	Document / XML	Repeatable Read, Read Committed, Read Uncommitted, Serializable, Snapshot Isolation
	evitaDB AI-Assisted	2020	Document / XML	Snapshot Isolation	AI-Assisted
	FaunaDB Serverless Failed Company	2012	Document / XML, Graph, Key/Value, Relational	Cursor Stability, Serializable, Snapshot Isolation	Serverless Failed Company
	Firebird AI-Assisted	2000	Relational	Read Committed, Snapshot Isolation	AI-Assisted
GO	Google F1	2013	Relational	Snapshot Isolation
	GUN Peer-to-Peer	2014	Graph	Snapshot Isolation	Peer-to-Peer
	Hekaton OLTP	2012	Relational	Read Committed, Repeatable Read, Serializable, Snapshot Isolation	OLTP
	Hive OLAP AI-Assisted	2010	Relational	Snapshot Isolation	OLAP AI-Assisted
	Husky Time-Series	2020	Document / XML	Snapshot Isolation	Time-Series
	Hypertable Acquired Company Abandoned	2008	Column Family / Wide-Column	Snapshot Isolation	Acquired Company Abandoned
	Hyrise OLAP	2009	Relational	Snapshot Isolation	OLAP
	iBoxDB Serverless Mobile NoSQL	2014	Document / XML	Snapshot Isolation	Serverless Mobile NoSQL
	InterBase Versioning Acquired Company	1984	Relational	Read Committed, Snapshot Isolation	Versioning Acquired Company
	Kudu OLTP	2016	Relational	Read Committed, Snapshot Isolation, Repeatable Read	OLTP
	LevelDB MMAP	2011	Key/Value	Snapshot Isolation	MMAP
	libSQL Forked Code OLTP	2022	Relational	Read Uncommitted, Serializable, Snapshot Isolation	Forked Code OLTP
	Memgraph AI-Assisted	2016	Graph	Snapshot Isolation	AI-Assisted
	MongoDB NoSQL AI-Assisted	2009	Document / XML	Read Committed, Snapshot Isolation, Repeatable Read, Read Uncommitted	NoSQL AI-Assisted
	Multigres Middleware AI-Assisted	2025	Relational	Read Uncommitted, Read Committed, Serializable, Snapshot Isolation, Repeatable Read	Middleware AI-Assisted
	Neon Serverless Forked Code Acquired Company OLTP	2021	Relational	Read Uncommitted, Read Committed, Serializable, Snapshot Isolation, Repeatable Read	Serverless Forked Code Acquired Company OLTP
	Neptune	2018	Graph, Triplestore / RDF	Read Committed, Snapshot Isolation
	Netlify Database Serverless Hosting Service	2024	Relational	Read Committed, Repeatable Read, Serializable, Snapshot Isolation	Serverless Hosting Service
	NoisePage	2018	Relational	Snapshot Isolation
	NuoDB NewSQL Acquired Company	2010	Relational	Read Committed, Snapshot Isolation	NewSQL Acquired Company
	ObjectBox Time-Series Nearest Neighbor Search MMAP Mobile NoSQL	2016	Object-Oriented	Read Committed, Snapshot Isolation	Time-Series Nearest Neighbor Search MMAP Mobile NoSQL
	OceanBase	2010	Relational	Read Committed, Serializable, Snapshot Isolation
	OpenSearch Forked Code Search Engine AI-Assisted	2021	Document / XML	Snapshot Isolation	Forked Code Search Engine AI-Assisted
	Pebble AI-Assisted	2018	Key/Value	Snapshot Isolation	AI-Assisted
	PieCloudDB OLAP	2021	Relational	Read Committed, Serializable, Snapshot Isolation, Repeatable Read	OLAP
PN	PNUTS Abandoned OLTP NoSQL	2008	Key/Value	Serializable, Snapshot Isolation	Abandoned OLTP NoSQL
	PostgreSQL OLTP	1986	Relational	Read Committed, Read Uncommitted, Repeatable Read, Serializable, Snapshot Isolation	OLTP
	RaimaDB Time-Series	1984	Network, Relational	Serializable, Snapshot Isolation	Time-Series
	RaptorDB Forked Code	2024	Relational	Read Uncommitted, Read Committed, Serializable, Snapshot Isolation, Repeatable Read	Forked Code
	RavenDB MMAP NoSQL AI-Assisted	2009	Document / XML, Key/Value	Serializable, Snapshot Isolation	MMAP NoSQL AI-Assisted
	RedDatabase Forked Code	2006	Relational	Read Committed, Snapshot Isolation	Forked Code
	Rel	2004	Relational	Serializable, Snapshot Isolation
	RexDB Acquired Company	2006	Relational	Read Committed, Read Uncommitted, Repeatable Read, Serializable, Snapshot Isolation	Acquired Company
	RocksDB Forked Code OLTP	2012	Key/Value	Snapshot Isolation	Forked Code OLTP
	rqlite AI-Assisted	2014	Relational	Serializable, Snapshot Isolation, Read Uncommitted	AI-Assisted
	SereneDB OLAP OLTP Search Engine AI-Assisted	2024	Relational	Snapshot Isolation	OLAP OLTP Search Engine AI-Assisted
	SirixDB AI-Assisted	2012	Document / XML	Snapshot Isolation	AI-Assisted
	Snowflake OLAP	2013	Document / XML, Relational	Snapshot Isolation	OLAP
	Sophia Abandoned OLTP NoSQL	2014	Key/Value	Snapshot Isolation	Abandoned OLTP NoSQL
	Speedb Forked Code Acquired Company	2020	Key/Value	Snapshot Isolation	Forked Code Acquired Company
	SQLite OLTP	2000	Relational	Read Uncommitted, Serializable, Snapshot Isolation	OLTP
	SQL Server	1988	Relational	Repeatable Read, Read Committed, Read Uncommitted, Serializable, Snapshot Isolation
	Swarm64 OLAP Acquired Company	2013	Relational	Read Uncommitted, Read Committed, Serializable, Snapshot Isolation, Repeatable Read	OLAP Acquired Company
TE	Tera Abandoned	2014	Column Family / Wide-Column	Snapshot Isolation	Abandoned
	TerarkDB Forked Code Acquired Company	2016	Key/Value	Snapshot Isolation	Forked Code Acquired Company
	TerminusDB AI-Assisted	2019	Document / XML, Graph, Triplestore / RDF	Snapshot Isolation	AI-Assisted
	TransLattice NewSQL Failed Company	2007	Relational	Read Uncommitted, Read Committed, Serializable, Snapshot Isolation, Repeatable Read	NewSQL Failed Company
	Vector OLAP Acquired Company	2009	Relational	Snapshot Isolation	OLAP Acquired Company
	WiredTiger Acquired Company AI-Assisted	2008	Key/Value	Read Committed, Snapshot Isolation, Read Uncommitted	Acquired Company AI-Assisted
	Xata Forked Code AI-Assisted	2020	Relational	Read Committed, Repeatable Read, Serializable	Forked Code AI-Assisted
	YugabyteDB Forked Code OLTP AI-Assisted	2016	Key/Value, Relational	Read Committed, Serializable, Snapshot Isolation	Forked Code OLTP AI-Assisted
	ZODB	2002	Object-Oriented	Snapshot Isolation