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Graph Data Processing with Cypher

You're reading from   Graph Data Processing with Cypher A practical guide to building graph traversal queries using the Cypher syntax on Neo4j

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Product type Paperback
Published in Dec 2022
Publisher Packt
ISBN-13 9781804611074
Length 332 pages
Edition 1st Edition
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Author (1):
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Ravindranatha Anthapu Ravindranatha Anthapu
Author Profile Icon Ravindranatha Anthapu
Ravindranatha Anthapu
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Toc

Table of Contents (18) Chapters Close

Preface 1. Part 1: Cypher Introduction
2. Chapter 1: Introduction to Neo4j and Cypher FREE CHAPTER 3. Chapter 2: Components of Cypher 4. Part 2: Working with Cypher
5. Chapter 3: Loading Data with Cypher 6. Chapter 4: Querying Graph 7. Chapter 5: Filtering, Sorting, and Aggregations 8. Chapter 6: List Expressions, UNION, and Subqueries 9. Part 3: Advanced Cypher Concepts
10. Chapter 7: Working with Lists and Maps 11. Chapter 8: Advanced Query Patterns 12. Chapter 9: Query Tuning 13. Chapter 10: Using APOC Utilities 14. Chapter 11: Cypher Ecosystem 15. Chapter 12: Tips and Tricks 16. Index 17. Other Books You May Enjoy

Using the Cypher syntax

Cypher is like American Standard Code for Information Interchange (ASCII) art. A simple Cypher traversal query can look like this:

(A)-[:LIKES]->(B), (B)-[:LIKES]->(C), (A)-[:LIKES]->(C)

This also can be written as follows:

(A)-[:LIKES]->(B)-[:LIKES]->(C)<-[:LIKES]-(A)

If you notice the syntax, it reads more like a simple statement. A likes B, who likes C, who is also liked by A. Nouns represent nodes and verbs represent relationships.

Cypher supports various data types, which fall into three different categories.

Property types

The following are the different property types available in Cypher:

  • Number:
    • Integer
    • Float
  • String
  • Boolean
  • Spatial:
    • Point
  • Temporal:
    • Date
    • Time
    • LocalTime
    • DateTime
    • LocalDateTime
    • Duration

Property types can have the following characteristics.

  • Can be a part of data returned by queries
  • Can be used as input parameters
  • Can be stored as properties on nodes or relationships...
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