HugeGraph is a full-stack graph database system A graph database that supports more than 100+ billion data, high performance and scalability (Include OLTP Engine & REST-API & Backends).

providing complete graph data processing capabilities from storage, real-time querying to offline analysis, supporting both Gremlin and Cypher query languages.

• HugeGraph @ GitHub.

Related contents:

• The Apache Software Foundation Announces New Top-Level Project @ The ASF.

Limbo is a work-in-progress, in-process OLTP database management system, compatible with SQLite.

Related contents:

• Episode #626: Turso is rewriting SQLite in Rust @ Changelog Interviews.
• Introducing Limbo: A complete rewrite of SQLite in Rust @ Turso.

an open source Distributed SQL Database.

YDB is a versatile open source Distributed SQL Database that combines high availability and scalability with strong consistency and ACID transactions. It accommodates transactional (OLTP), analytical (OLAP), and streaming workloads simultaneously.

• YDB @ GitHub.