NoSQL Database Technical Overview. The Oracle NoSQL Database is a distributed key-value database.
It is designed to provide highly reliable, scalable and available data storage across a configurable set of systems that function as storage nodes. Data is stored as key-value pairs, which are written to particular storage node(s), based on the hashed value of the primary key. Storage nodes are replicated to ensure high availability, rapid failover in the event of a node failure and optimal load balancing of queries. Customer applications are written using an easy-to-use Java/C API to read and write data. Apple and Samsung's symbiotic relationship: Slicing an Apple. SQLFire: Scalable SQL instead of NoSQL. Big Data, MapReduce, Hadoop, NoSQL: The Relational Technology Behind the Curtain.
Posted October 20, 2011 By Wayne KernochanFeedback Hadoop has its limits for Big Data analytics – and relational databases may have more of a future than you think.
One of the more interesting features of vendors' recent marketing push to sell business intelligence and analytics is the emphasis on the notion of Big Data, often associated with NoSQL, Google MapReduce, and Apache Hadoop, but without a clear explanation of what these are, and where they are useful. It is as if we were back in the days of "checklist marketing," where the aim of a vendor like IBM or Oracle was to convince you that if competitors' products didn't support a long list of features, those competitors would not provide you with the cradle-to-grave support you needed to survive computing's fast-moving technology. As it turned out, many of those features were unnecessary in the short run, and a waste of money in the long run; remember rules-based AI?