CHAPTER 6
Using Apache Cassandra
Apache Cassandra is a wide-column, open source NoSQL database and the most commonly used NoSQL database in its category. The container of data, equivalent to a database schema in a relational database, in Apache Cassandra is a Keyspace. The basic unit of storage is a column family (also called table), and each record in a table is stored in a row with the data being stored in columns. A column has a name, a value, and a timestamp associated with it. A column is not required to store a value and the column could be empty. Apache Cassandra is based on a flexible schema (or schema-free or dynamic schema) data model ...
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