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)

Data operations

The second component of a data model is a set of operations that can be performed on the data. In this module, we'll discuss the operations without considering the bigness aspect. Now, operations specify the methods to manipulate the data. Since different data models are typically associated with different structures, the operations on them will be different. But some types of operations are usually performed across all data models. We'll describe a few of them here. One common operation extracts a part of a collection based on the condition.

Subsetting

Often, when we’re working with a huge dataset, we will only be involved in a small portion of it for your particular analysis. So, how do...