Here you find some useful third-party developer tools which can be widely used to work with various databases, JDBC drivers and related:

Database tools:

DBVisualizer - is a feature rich, intuitive and cross platform database tool for developers and DBA's providing a single powerful interface for a variety of databases. DbVisualizer supports simultaneous database connections, it lets you explore and manage database objects, execute SQL queries, visualize information and a lot more.  See more information here.

SQL Uniform - is a database client, graphical user interface (GUI), a helper application to relational databases of various types regarding query, maintenance, data comparison, export (convert), import. See more information here.

DBF / FoxPro Tools. Useful and powerful DBF / FoxPro utilities by WhiteTown Software: DBF viewer and editor, various DBF converters - DBF to CSV, DBF to MDB (Access), DBF to XLS (Excel), etc.

Reporting tool:

Scribe Report Generator - is based on graphical programming concepts, allowing the users to define the process of retrieving data from the database tables, performing the necessary calculations, creating pie, bar and line charts, and formatting data for printing. Scribe performs all these tasks in the form of an executable graphical flowchart. Printing is done through WYSIWYG page layout forms (print templates). See more information here.

Document search, text search tool:

Archivarius 3000 is a full-featured application to search documents and e-mails on the desktop computer, your local network and removable drives (CD, DVD and others). Documents can be searched by content, the same like with Internet search engines. While searching the program automatically calculating all forms of words, which provide full-text documents search in 18 languages. See more information here.