Book Image

Practical Big Data Analytics

By : Nataraj Dasgupta
Book Image

Practical Big Data Analytics

By: Nataraj Dasgupta

Overview of this book

Big Data analytics relates to the strategies used by organizations to collect, organize, and analyze large amounts of data to uncover valuable business insights that cannot be analyzed through traditional systems. Crafting an enterprise-scale cost-efficient Big Data and machine learning solution to uncover insights and value from your organization’s data is a challenge. Today, with hundreds of new Big Data systems, machine learning packages, and BI tools, selecting the right combination of technologies is an even greater challenge. This book will help you do that. With the help of this guide, you will be able to bridge the gap between the theoretical world of technology and the practical reality of building corporate Big Data and data science platforms. You will get hands-on exposure to Hadoop and Spark, build machine learning dashboards using R and R Shiny, create web-based apps using NoSQL databases such as MongoDB, and even learn how to write R code for neural networks. By the end of the book, you will have a very clear and concrete understanding of what Big Data analytics means, how it drives revenues for organizations, and how you can develop your own Big Data analytics solution using the different tools and methods articulated in this book.
Table of Contents (16 chapters)
Title Page
Packt Upsell
Contributors
Preface

Why NoSQL?


The term NoSQL generally means Not Only SQL: that is, the underlying database has properties that are different to those of common and traditional database systems. As such, there is no clear distinction that qualifies a database as NoSQL, other than the fact that they do not provide the characteristics of ACID compliance. As such, it would be helpful to understand the nature of ACID properties that have been the mainstay of database systems for many decades, as well as discuss, in brief, the significance of BASE and CAP, two other terminologies central to databases today.

The ACID, BASE, and CAP properties

Let's first proceed with ACID and SQL.

ACID and SQL

ACID stands for atomicity, consistency, isolation, and durability:

  • Atomicity: This indicates that database transactions either execute in full or do not execute at all. In other words, either all transactions should be committed, that is, persisted in their entirety, or not committed at all. There is no scope for a partial execution...