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Learning Neo4j 3.x

You're reading from   Learning Neo4j 3.x Effective data modeling, performance tuning and data visualization techniques in Neo4j

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Product type Paperback
Published in Oct 2017
Publisher Packt
ISBN-13 9781786466143
Length 316 pages
Edition 2nd Edition
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Authors (2):
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Jerome Baton Jerome Baton
Author Profile Icon Jerome Baton
Jerome Baton
Rik Van Bruggen Rik Van Bruggen
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Rik Van Bruggen
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Toc

Table of Contents (17) Chapters Close

Preface 1. Graph Theory and Databases FREE CHAPTER 2. Getting Started with Neo4j 3. Modeling Data for Neo4j 4. Getting Started with Cypher 5. Awesome Procedures on Cypher - APOC 6. Extending Cypher 7. Query Performance Tuning 8. Importing Data into Neo4j 9. Going Spatial 10. Security 11. Visualizations for Neo4j 12. Data Refactoring with Neo4j 13. Clustering 14. Use Case Example - Recommendations 15. Use Case Example - Impact Analysis and Simulation 16. Tips and Tricks

Verifying APOC installation


With your server started, you may now go to your Neo4j browser and input the following query:

CALL dbms.functions() YIELD name
WHERE name STARTS WITH 'apoc.'
RETURN count(name)
UNION 
CALL dbms.procedures() YIELD name
WHERE name STARTS WITH 'apoc.'
RETURN count(name)

This is a UNION query that will return two lines, fortunately with non-zero numbers. My result at the time of writing this is 98, then 201. Note that this is not using APOC, but built-in functions.

Note

A UNION query returns the concatenation of the results of two queries returning the same columns.

This means 98 functions and 201 procedures. I presume that soon, the formidable community and the uncomparable Michael Hunger (@mesirii) will reach 365 functions or procedures and we will have a new APOC calendar to go with the old wisdom that says:

One APOC a day keeps verbosity away.

I just made up this old wisdom, of course. Nevertheless, using APOC will keep the verbosity away from your queries because, in...

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