Petr Vanek and I are maintaining some packages for openSUSE (and SLE) that build against the Oracle Instant Client libraries (I mean Oracle the database). Now, those libraries are not open source in any way, but are available from the Oracle TechNet website.
There are a few open source projects that are of interest, at least for people who have to work with the Oracle database, and we do package a few of them and Petr makes them available in his repository.
perl-DBD-Oracle (the Oracle database driver for Perl),
php5-pecl-oci8 (the Oracle database driver for PHP5),
python-cx_Oracle (a Python module to access Oracle databases),
ruby-oci8 (the... you got he picture, this time for Ruby), as well as
Why would we package that stuff, as it is not open source ? Well, actually, the software that we package is open source, it's just that the shared libraries and C headers they require are not. Oh, and we do not redistribute the Oracle Instant Client library RPMs there. That is something you must get from Oracle by yourself.