NuoDB looks relational and leverages SQL but isn’t relational under the covers. It was developed initially to support OLTP but now offers a hybrid environment that not only supports transaction processing but also provides analytic capabilities.
NuoDB primarily targets companies that want to migrate existing applications to what the company calls “Distributed SQL” environments. That is, elastically scalable, distributed, in-(multi)-cloud, container-based, SQL processing and applications. Hybrid analytic and transactional processing is a subset of that market that its direct competitors do not serve well, if at all.