While I'd never suggest Mongo if you need transactional support on par with OLTP, Mongo does have single document transactional support through the use of getLa

While I'd never suggest Mongo if you need transactional support on par with OLTP, Mongo does have single document transactional support through the use of getLastError and its various options. http://www.mongodb.org/display/DOCS/getLastError+Command http://www.mongodb.org/display/DOCS/getLastError+Command