SQL/PGQ Graph Database Popularity Ranking

Google Cloud BigQuery Graph leads with a score of 49.6, followed by Oracle Graph (48.8) and Google Cloud Spanner Graph (45.6) — 6 engines ranked, May 2026.

#	Name	Score	Tier	Type	License	Language	Query Languages
1	Google Cloud BigQuery Graph	49.6	Growing	Property Graph	Proprietary	-	GQLSQL/PGQ
2	Oracle Graph	48.8	Growing	Multiple	Proprietary	Java	PGQLSPARQLSQL/PGQ
3	Google Cloud Spanner Graph	45.6	Growing	Property Graph	Proprietary	-	GQLSQL/PGQ
4	DuckPGQ	42.4	Growing	Property Graph	MIT	C++	SQL/PGQ
5	Grafeo	42.0	Growing	Multiple	Apache-2.0	Rust	CypherGQLGraphQL +3
6	PostgreSQL SQL/PGQ	40.4	Growing	Property Graph	PostgreSQL	C	SQL/PGQ