Sentinel is a filesystem-backed document DBMS written in Rust.
Database SQL, query tool, using JDBC for Oracle,SQLite,PostgreSQL,etc
Mature SGBD in Perl with a web interface
Data quality analysis, profiling, cleansing, duplicate detection +more
A generic biodiversity database management system
MySQL Replication Monitor (written in PHP)
database updater
Java graphic front end for SQLite database (eg addressbook)