H2 is an embeddable RDBMS written in Java
Database migrations made easy
A graph database that supports more than 100+ billion data
Database Replication, Filtered Synchronization, and Transformation
With aguacate you get a better taste
LSJ-Server-Terra (Java Multipurpose Sever connected with MariaDB)
Fast comparer for database data in the key predefined tables
Paper is a fast NoSQL-like storage for Java/Kotlin objects on Android
Java ORM
Database application creator/builder/maker/producer/designer for user
Software builder for both veteran programmer and novice.
DBLX3 Relational Database System
Java library to remove Object/Relation Impedance
palo olap open office calc plugin for data analysis
Command Centre
Open source Extract Transform Load engine written in Java
A UI tool for any database
Small, fast Java library for reading and writing CSV files