Assignment task: With the explosion of huge volumes of unstructured data, a new breed of database technologies has emerged and have become popular. Clearly, these new database technologies like Dynamo, Bigtable, and Cassandra are critical technology to the companies that created them.
1. What do you think this movement means to the existing DBMS vendors? How serious is the NoSQL threat? Justify your answer. What responses by existing DBMS vendors are sensible?