pgModeler is an open source tool for modeling databases that merges the classical concepts of entity-relationship diagrams with specific features that only PostgreSQL implements. It helps to easily create and edit database models with a simple and intuitive interface.
phpMyAdmin is a free software tool written in PHP, intended to handle the administration of MySQL over the Web. phpMyAdmin supports a wide range of operations on MySQL and MariaDB. Frequently used operations (managing databases, tables, columns, relations, indexes, users, permissions, etc) can be performed via the user interface, while you still have the ability to directly execute any SQL statement.
PLDoc is an open-source utility for generating HTML documentation of code written in Oracle PL/SQL.
plsqldoc Plug-in is basically a PL/SQL plugin that allows you to generate HTML documentation for functions, procedures, packages, types, triggers, tables, and views. The documentation is derived from the definition and the comments of these objects.
Pony is a Python ORM with beautiful query syntax. It helps you write your database queries using Python generators & lambdas. Using Pony object-relational mapper, you can concentrate on writing business logic of your application and use Python syntax for interacting with the database. Pony translates such queries into SQL and executes them in the database in the most efficient way.
PostgresCompare is a schema and data comparison tool for PostgreSQL. It identifies database objects that have been new, different, or deleted and generates the SQL to keep your database up to date.
PowerDesigner DataArchitect is the industry-leading data modeling tool manufactured. It offers a model-driven approach to empower and align business and IT. PowerDesigner enables enterprises to more easily visualize, analyze, and manipulate metadata for effective enterprise information architecture.