ABSTRACT
Cassandra is one of the widely scalable open-source not only structured query language databases. Cassandra is best for handling gigantic amounts of structured, semi structured, and unstructured data across distributed data centers and the cloud. Cassandra Query Language (CQL) Shell stands for Cassandra query language, or as more commonly known as cqlsh, this is a REPL for running the commands on CQL statements against a Cassandra cluster interactively. Cassandra can provide continuous availability, linear scalability, and operational simplicity across many commodity servers and not using a single point of failure, together with a robust dynamic data model designed for the highest flexibility and quick-response instances. NodeTool is the Swiss army knife of tools for Cassandra. By default, cqlsh will connect to the Cassandra node on local host.
