VoltDB is a high
performance scalable RDBMS and NewSQL Database primarily
for Big Data, high velocity OLTP and Real-time
analytics designed by Michael Stonebraker, Sam Madden, and
Daniel Abadi.
It was one of the NewSQL databases first
introduced as open source product in 2010.Demand for high scale and in memory
databases(which means it depends mainly on main memory for storage) in the
market has shaped great aperture for VoltDB.