Oracle OpenWorld 2009: Photo gallery Summary: There are large conferences, and then there is Oracle OpenWorld. A mega-conference that sees over 40,000 attendees descend on San Francisco. By Chris Duckett | October 16, 2009 -- 01:06 GMT (18:06 PDT) Follow @dobes Previous | Next Image 12 of 13 San Francisco's weather was never far away. (Credit: Stephen Shankland/CNET News.com) Topics: Dell, Big Data, Data Management, Enterprise Software, Oracle Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.