Book Image

Learning Neo4j 3.x - Second Edition

By : Jerome Baton
Book Image

Learning Neo4j 3.x - Second Edition

By: Jerome Baton

Overview of this book

Neo4j is a graph database that allows traversing huge amounts of data with ease. This book aims at quickly getting you started with the popular graph database Neo4j. Starting with a brief introduction to graph theory, this book will show you the advantages of using graph databases along with data modeling techniques for graph databases. You'll gain practical hands-on experience with commonly used and lesser known features for updating graph store with Neo4j's Cypher query language. Furthermore, you'll also learn to create awesome procedures using APOC and extend Neo4j's functionality, enabling integration, algorithmic analysis, and other advanced spatial operation capabilities on data. Through the course of the book you will come across implementation examples on the latest updates in Neo4j, such as in-graph indexes, scaling, performance improvements, visualization, data refactoring techniques, security enhancements, and much more. By the end of the book, you'll have gained the skills to design and implement modern spatial applications, from graphing data to unraveling business capabilities with the help of real-world use cases.
Table of Contents (24 chapters)
Title Page
Credits
About the Authors
Acknowledgement
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

More that you need to know


I would definitely have started this paragraph with One more thing; but there is more than one. Here are a few points I would have liked to know when I started using Cypher.

When a syntax error arises, as it happens to the best of us, sometimes the error message can be improved:

  • Check whether all nodes are closed; it's easy to miss a closing parenthesis just after a closing curly bracket
  • The semicolon before the name of a relation is mandatory (so far, I'm lobbying against this)

Check what you return, because the graph view in the browser will show you a view of your results. This is why you get relations when you only return a few nodes. The neighbors (nodes connected) are displayed up to the maximum count of displayable items, which is 300 by default. Keep this in mind. Neighbors give the context, but the truth is in the Rows and Text tabs.

To see and change the default settings for the browser, click on the Settings icon (a gear) at the bottom left of the screen...