Too Long; Didn't Read
The Apache Cassandra Guide: Data Modeling Guide: CQL. We will walk you through the process of creating a basic data model. The first thing to learn about data modeling in Apache Cassandra is keyspaces. A keyspace is very similar to a database or schema from the relational database world, as it holds all of your tables. Each table is organized into rows and columns. The difference with Cassandra is that each row has a partition key: one or more columns that are hashed to determine which node(s) store the data.