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You're reading from Learning Neo4j 3.x - Second Edition

Product typeBook

Published inOct 2017

Reading LevelIntermediate

PublisherPackt

ISBN-139781786466143

Edition2nd Edition

Languages

Java

Tools

Neo4j

Concepts

Databases

Author (1)

Jerome Baton

Simple changes

I define simple changes as changes effecting individual nodes without impacting relations or other related nodes.

Renaming

There is no renaming feature in Cypher but there is a procedure for that in APOC.

The sentence there is a procedure for that in APOC is almost a mantra in the Neo4j community.

The longer version ends with--if there isn't , ask Michael, for Michael Hunger whom I already wrote about.

It is possible to rename labels, relations, node properties, and relation properties with APOC.

Currently, relations are named types so the procedures are as follows:

CALL apoc.refactor.rename.label(oldLabel, newLabel, [nodes])
CALL apoc.refactor.rename.type(oldType, newType, [rels])
CALL apoc.refactor.rename.nodeProperty(oldName, newName, [nodes])
or
CALL apoc.refactor.rename.typeProperty(oldName, newName, [rels])

You may optionally give a list of nodes or relations. Awesome.

Adding data

Adding data is enriching the current data model with new properties. This is rather safe. No risk...

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Learning Neo4j 3.x - Second Edition

Published in: Oct 2017Publisher: PacktISBN-13: 9781786466143

Author (1)

Jerome Baton

Jérôme Baton started hacking computers at the age of skin problems, gaming first then continued his trip by self-learning Basic on Amstrad CPC, peaking on coding a full screen horizontal starfield, and messing the interlace of the video controller so that sprites appeared twice as high in horizontal beat'em up games. Disks were three inches for 178 Kb then. Then, for gaming reasons, he switched to Commodore Amiga and its fantastic AMOS Basic. Later caught by seriousness and studies, he wrote Turbo Pascal, C, COBOL, Visual C++, and Java on PCs and mainframes at university, and even Logo in high school. Then, Java happened and he became a consultant, mostly on backend code of websites in many different businesses. Jérôme authored several articles in French on Neo4j, JBoss Forge, an Arduino workshop for Devoxx4Kids, and reviewed kilos of books on Android. He has a weakness for wordplay, puns, spoonerisms, and Neo4j that relieves him from join(t) pains. Jérôme also has the joy to teach in French universities, currently at I.U.T de Paris, Université Paris V - René Descartes (Neo4j, Android), and Université de Troyes (Neo4j), where he does his best to enterTRain the students. When not programming, Jérôme enjoys photography, doing electronics, everything DIY, understanding how things work, trying to be clever or funny on Twitter, and spends a lot of time trying to understand his kids and life in general.
Read more about Jerome Baton

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You're reading from Learning Neo4j 3.x - Second Edition

Simple changes

Renaming

Adding data

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Author (1)

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