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Python Data Analysis by Ivan Idris

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Apache Cassandra

Apache Cassandra mixes features of key-value and traditional relational databases. In a conventional relational database, the columns of a table are fixed. In Cassandra, however, rows within the same table can have different columns. Cassandra is therefore column oriented, since it allows a flexible schema for each row. Columns are organized in so-called column families, which are equivalent to tables in relational databases. Joins and subqueries are not possible with Cassandra. Cassandra can be downloaded from http://cassandra.apache.org/download/. The latest version at the time of writing was 2.0.9. Please refer to http://wiki.apache.org/cassandra/GettingStarted to get started.

Run the server from the command line as follows: ...

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