MediWiki with Oracle
Fragment of a discussion from Project:Support desk
Yes, Oracle is supported. However, if the problem is about sysadmins not wanting to install another database server, or bureacuracy prohibiting them from doing that, you can use MediaWiki with SQLite - which requires no extra installation and is better supported.
Yeah it's the bureacuracy. In the end, they will give me a server with Windows Server 2008r2 and oracle 10g installed and then tell me : "ok now install mediawiki, customise it and full it". It's easy on my computer but I hope not make some mystakes on a running server (they are a lot of possibility that the server will have other databases on it for production)...