❤Linux Database Management Systems❤

• Catalog of Free Databases
  The non-CGIed version of this is the FAQ for comp.databases. .
  As of August 1999, this list is no longer being maintained.
• WDB
  Portability information on database interfaces for Perl . e.g. OraPerl, SybPerl, isqlperl (Informix), MsqlPerl (mSQL), ingPerl (University Ingres)
• Angoss SmartWare
• Qddb
  Qddb is a database system written in conjunction with the TCL language. It uses a hierarchical schema system where records can contain subrecords, which means it can be used in a "multivalued" fashion in similar fashion to systems like Pick .
  A number of interactive Qddb applications have been written including management tools for address books, chequebooks, time tracking, FAQs (Frequently Asked Questions), just to name a few...
• LEAP - An educationally-oriented database system
  Open-source relational database (RDBMS) used by universities around the world to assist teaching of relational theory (specifically the relational algebra). Free under the GNU General Public License.
• TCM - Toolkit for Conceptual Modelling
  This set of software is free for noncommercial use, and provides (amongst other things) a validating Entity/Relationship diagram editor. Database systems are commonly described using E/R diagrams.
  This package unfortunately does not quite compare to commercial E/R tools such as ERWIN ;
  The major functionality that is missing is the ability to automatically turn the diagrams into the SQL code required to create the database tables, as can be done with commercial tools like ERWIN.
• Metropolis
  Which grew out of the DOS system, Alpha Base. Fenix runs atop Metropolis.
• FreshMeat on Databases
• FreshMeat on Database tools for X11