An open source SQL database designed to process time series data
Distributed database ecosphere
Mirror of Apache Phoenix
Ebean ORM
A graph database that supports more than 100+ billion data
TypeDB: a strongly-typed database
The open big data serving engine
General-purpose bitemporal database for SQL, Datalog & graph queries
A flexible graph store, written in Clojure
Apache IoTDB
Easy to use open source fast database for search
Embeddable JSON Database engine C library
RisingWave: the next-generation streaming database in the cloud
Realm is a mobile database, an alternative to SQLite key-value stores
Mobile database: a replacement for Core Data & SQLite
MySQL Proxy using Java NIO based on Sharding SQL, Calcite
Toolkit for working with and mapping geospatial data
A powerful, cross platform, SQL database system
A Java SQL client for any JDBC compliant database
Relational Database
An object relational-mapping (ORM) library for Java
dBase for Java
Database Replication, Filtered Synchronization, and Transformation
A generator of DTO, Model, and DAO classes to access relational DB