There are four key characteristics that define big data: Volume, Velocity, Variety and Value. Volume and velocity aren't necessarily new problems for IT managers; these issues are just amplified today. The distinguishing characteristics of big data that do create new problems are the variety and low density value of the data. Big data comes in many different formats that go beyond the traditional transactional data formats. Access this invaluable eBook from Oracle and see how Oracle meets the emerging requirements for Big Data.