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Learning Apache Cassandra

Learning Apache Cassandra

By : Brown
4.4 (13)
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Learning Apache Cassandra

Learning Apache Cassandra

4.4 (13)
By: Brown

Overview of this book

If you're an application developer familiar with SQL databases such as MySQL or Postgres, and you want to explore distributed databases such as Cassandra, this is the perfect guide for you. Even if you've never worked with a distributed database before, Cassandra's intuitive programming interface coupled with the step-by-step examples in this book will have you building highly scalable persistence layers for your applications in no time.
Table of Contents (14 chapters)
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13
Index

Chapter 3. Organizing Related Data

In Chapter 2, The First Table, we created our first table, which stores user accounts. We discussed how to insert data into the table, and how to retrieve it. However, we also encountered several significant limitations in the tasks we can perform with the table we created.

In this chapter, we'll introduce the concept of compound primary keys, which are simply primary keys comprising more than one column. Although this might at first glance seem like a trivial addition to our understanding of Cassandra tables, a table with compound primary keys, in fact, is a considerably richer data structure that opens up substantial new data access patterns.

Our introduction to compound primary keys will help us to build a table that stores a timeline of users' status updates. In this chapter, we'll focus on defining the table and understanding how it works; Chapter 4, Beyond Key-Value Lookup, will introduce new patterns to query compound primary...

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