MaxDB

Linux Quickstart Howto (Debian)
SapDB step-by-step installation guide.
http://www.mybytes.de/sapdb.html

MaxDB
An open, SQL-based, relational database system that provides high availability and performance scaling from small to very large implementations. [Open Source, GPL/LGPL]
http://www.mysql.com/products/maxdb/

Sap DB Developers's Site
Developer Helper Site with actual setup guide for linux and information about the project.
http://sapdb.automatix.de

Developing SAP DB
Developer information from Daniel Dittmar. <small>(March 18, 2001)</small>
http://home.snafu.de/~dittmar/sapdbdev/index.html