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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

Working with list expressions

Cypher provides native support for lists. This means that not only are they treated as first-class entities, such as integers or strings, but all the functions that can create, manipulate, or process the lists are built into Cypher. Let us look at the following functions, all of which are available to process lists:

  • range
  • head
  • tail
  • last
  • size
  • reverse
  • reduce

As well as these functions, we can also use list comprehensions. First, we will take a look at the preceding functions, and then we will explore list comprehensions in greater depth.

Let us look at the range function.

Working with the range function

The range function provides a way to create a list with numbers. It takes a start value and an end value with an optional step parameter and returns a list of all integer values bound by start and end. The syntax of the range function is as follows:

range(start, end [, step])

The step value is optional...

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