A graph database that supports more than 100+ billion data
CDC Connectors for Apache Flink
TypeDB: a strongly-typed database
The open big data serving engine
Apache IoTDB
RisingWave: the next-generation streaming database in the cloud
Easy to use open source fast database for search
Toolkit for working with and mapping geospatial data
jdl is a loader utility for moving data from (CSV or XML) into a db.
A Java SQL client for any JDBC compliant database
A powerful, cross platform, SQL database system
Relational Database
An object relational-mapping (ORM) library for Java
Database Subsetter and Relational Data Browser
A Database System for Metamodeling and Method Engineering
A generator of DTO, Model, and DAO classes to access relational DB
Database Replication, Filtered Synchronization, and Transformation
Deductive Database with Datalog, SQL, RA, TRC, DRC
Relative Examples and Resources of iBoxDB, etc...