pgWebAdmin is an intitaive to provide an easy friendly UI for PostgreSQL database for developers, users.
It also aims to be a part of existing popular local development server setups by default, or easy installation with server setups e.g. WAMP.
phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web. Currently it can create and drop databases, create/drop/alter tables, delete/edit/add columns, execute any SQL statement, manage indexes on columns.
deegree is a Java framework for geospatial software based on the specifications of the OpenGIS Consortium and the ISO. The focus is based on the realisation of OGC specified web services. It is developed in cooperation between lat/lon and the University of Bonn.