Denis Klaric's oracle on linux pages
Oracle on linux installation guides, oracle 8i, 9i on Red hat linux
Empress Relational Database Management System
The fast, compact Empress RDBMS ( Relational Database Management System ) is ideal for use in embedded applications on Unix, Windows, or real-time environments.
genSQL - Generic SQL Interface
Generic SQL Interface using gnome and uC++.
GQL - Generic SQL Interface
A generic interface to SQL databases, written in C++.
GtkSQL
GtkSQL is a graphical query tool (like PostgreSQL's psql). It is released under the GNU GPL license, and was developed using Gtk+ 1.2.3 and PostgreSQL 6.3.
Hughes Technologies - miniSQL
Mini SQL, aka mSQL, is a lightweight SQL database engine from Hughes Technologies. mSQL is free for noncommercial use.
IBM Data Management: DB2 Universal Database for Li
DB2 for Linux provides: security, performance monitoring, connection monitoring, simplified connection configuration, centralized client configuration, and high data availability.
iODBC: Platform Independent ODBC
iODBC is an Open Source effort that provides platform independent implementation of both the ODBC and X/Open SQL Call Level Interface specifications. iODBC deliverables include: Platform Independent ODBC SDK, and Platform independent runtime components that includes: ODBC Data Source Manager, ODBC Driver Manager, and ODBC Driver Vendor listings and references.
MZFriends
MZFriends is a very simple database program. It was made to be an address book, but it can save what you want.
Oracle on Linux: Installation and Configuration
The site contains a collection of resources on how to install and configure Oracle8i and Oracle9i on the different flavors of Linux (Redhat, SuSE,...). The focus is on practical HOW-TO kind of guidance.
Relational Database Management Systems for Linux
Chris Browne's page on RDBMSes, focusing primarily on Linux.
Senga - GNU Mifluz
Provides a C++ library to store a full text inverted index, for the purpose of located documents containing specific words.