SAP has open sourced their database under the LGPL, SAP DB
is now available for download for free. SAP also has provided a few web links
to various sites that have how-to's on setting up SAP DB with applications like Apache and PHP. If your in the design phase of a project and looking for a good database to put behind it, you may want to check out SAP DB.
I may download it and check it out, keep your eye out for more here at Geek(Wisdom).