Cassandra
Apache Cassandra is a free and open-source, NoSQL, distributed, wide-column store, and high-performance database management system designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure. It is designed to handle large amounts of data across many commodity servers, providing high availability with no single point of failure.
Cassandra is a column-family store and it stores data in a structured format, using tables and columns. It is based on a data model that is similar to that of Google’s Bigtable, and it provides a query language that is similar to SQL.
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