An object relational-mapping (ORM) library for Java
A Java SQL client for any JDBC compliant database
Intellect Modeling Kit: assisting research, diagnostics, consulting
Chess Database and PGN viewer
Toolkit for working with and mapping geospatial data
PHP database abstraction layer
Database Replication, Filtered Synchronization, and Transformation
Deductive Database with Datalog, SQL, RA, TRC, DRC
Electronic Laboratory Notebook, chemical inventory & more
Logger to use from within PostgreSQL
DAO for all database server types with the Java POJO code generator
Free Web-Based Church Management Database Software
SQLObject is a Python ORM.