May 2015
Beginner to intermediate
226 pages
4h 37m
English
Content preview from Neo4j CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Deleting data from Neo4j using the Cypher query
In this recipe, we will learn how to delete nodes and relationships from Neo4j. This recipe can be used to delete all nodes/relations or subsets of them.
Getting ready
To step through this recipe, you will need to create some nodes and relationships among them to get the most from this recipe.
How to do it...
We have divided this recipe into the following problem sets:
- Deleting all relationships from the Neo4j graph:
MATCH (n)-[r]-() DELETE r
- Deleting all nodes from the Neo4j graph:
MATCH (n) DELETE n
The preceding query will only work if there are no relationships in the graph.
- Deleting all nodes from the Neo4j graph matching a condition:
MATCH (n) WHERE n.city = "Atlanta" DELETE n # You have to delete all ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.