What is Apache Cassandra?

Cassandra is an free, open-source, distributed, and NOSQL database management system used to handle large amount of data. Cassandra provides high availability without any failure.

Cassandra is written in Java. It is originally designed by Facebook consisting of flexible schemas. It is highly scalable for big data.

Cassandra has its own Cassandra Query Language (CQL). CQL is a simple interface for accessing Cassandra, as an alternative to the traditional Structured Query Language (SQL).

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