[threeseed]

NoSQL is absolutely competing with Oracle and other relational DB vendors. You are seeing it today with the valuations for companies like Mongo or DataStax. SaaS is hardly a big enough market compared to say every enterprise. And surely the companies listed on the client pages agree with me.

And people forget something important with SaaS. Data sovereignty. Here in Australia for example there are many enterprise companies who are forbidden from using ANYTHING that is hosted in the US due to the grey legal area e.g. Patriot Act. So in-house databases are absolutely still here to stay.

[jhorey]

It's interesting, my experience with companies here in the U.S. (mainly SMBs) are that they feel much more comfortable using a SaaS compared to adopting an internal NoSQL store. Granted most of these companies aren't highly technical, but I suspect for them using a SaaS is easy and doesn't require much internal expertise. Adopting a new NoSQL store though may require training, etc. Of course I concede that things may be different in larger enterprises and companies outside the U.S.

I would bet, however, that most of the clients that do business with Mongo or DataStax still intend on using/maintaining a relational system. I haven't really encountered many companies that's decided to completely dump their relational systems in favor of something else.