After speaking with 10Gen co-founder and CEO Dwight
MerriamMerriman (the picture is from his blog), it's clear that NoSQL technology may be good for some niches, but will remain mostly a niche offering.
The 10Gen company is a commercial arm for MongoDB, an open source non-relational database launched as open source in 2007. It uses a typical open source business model -- commercial support, enterprise licenses, training and consulting.
"It's generally used online for real time reads and writes,"
Merriam The most common case is operational data store of a web site infrastructure. It's for Web software."“It’s not for data warehousing or offline batch loaded data storage. The most common case is operational data store of a web site infrastructure."
"We're talking to a lot of people about Mongo who are using Oracle and want to swap it out. But one size fits all is over. There is going to be specialization. We say you shouldn't use one tool for every problem, as you did for relational databases."
Rather than destroying Oracle,
MerriamMerriman feels, ideas like NoSQL pick off parts of its market. "The common property of NoSQL is they're non relational and lightly transactional. Beyond that there are many places to go. Data models vary a lot. Some of the product are pure key value stores. Some are tabular. Some like Mongo are JSON databases.
What is most exciting to see,
MerriamMerriman says, is the growing maturity of the idea from last year to this.
"Last year in 2009 there were a lot of NoSQL meet-ups with product introductions. This year we'll see use cases, deep dives into this stuff, how you administer it, schema design, how you connect Ruby, C++ etc. to it. It's serious tooling for production systems."
Want to learn more? 10gen is hosting a Mongo Day in San Francisco April 30, an in-depth conference featuring small, hands-on workshops. Great way to get ready for the weekend.