Book Image

Hands-On Big Data Modeling

By : James Lee, Tao Wei, Suresh Kumar Mukhiya
Book Image

Hands-On Big Data Modeling

By: James Lee, Tao Wei, Suresh Kumar Mukhiya

Overview of this book

Modeling and managing data is a central focus of all big data projects. In fact, a database is considered to be effective only if you have a logical and sophisticated data model. This book will help you develop practical skills in modeling your own big data projects and improve the performance of analytical queries for your specific business requirements. To start with, you’ll get a quick introduction to big data and understand the different data modeling and data management platforms for big data. Then you’ll work with structured and semi-structured data with the help of real-life examples. Once you’ve got to grips with the basics, you’ll use the SQL Developer Data Modeler to create your own data models containing different file types such as CSV, XML, and JSON. You’ll also learn to create graph data models and explore data modeling with streaming data using real-world datasets. By the end of this book, you’ll be able to design and develop efficient data models for varying data sizes easily and efficiently.
Table of Contents (17 chapters)

Why is streaming data different?

Big data is composed of massive databases, and millions or even billions of document files. One of the possible ways to generate insights from these datasets is by batch processing. One of the classical approaches of batch processing is called Hadoop's MapReduce paradigm. The processing time can take anywhere from minutes to hours, or even more—it all depends on the size of the job. But if we are thinking about insights in real time, we are more concerned about streaming data.

Streaming data can be defined as a sequence of digitally-encoded coherent signals that are used to send or receive information that is in the process of being transmitted.

Formally, it can be defined as any ordered pair (S, Δ) (S, Δ), where S is a sequence of tuples and Δ is a sequence of positive real-time intervals.

In order to humanize the...