hi! I have a list of objects, the objects have different properties. array = [{name: 'Armen', age: 26}, {name: 'Alex', profession: 'Scientist'}] I need to iterate over list and create nodes with properties provided by objects. Which is the easiest and best practice way to do it? Thanks in advance!…

So, you will need to use batches to load your nodes and relationships. A batch is a list of items and you can use a batch that is 1000 or 10,000 in size depending on the power of your computer. First, you will have to create a UNIQUE CONSTRAINT on each node Label if you have unique identifer by lab…

Hello @armensanoyan :slight_smile: You have create your nodes with this query: WITH [{name: 'Armen', age: 26}, {name: 'Alex', profession: 'Scientist'}] AS nodes UNWIND nodes AS node CREATE (man:Man) SET man += node RETURN man But if you want to use the MERGE clause, a good practice is to have a…

Thank you this is exactly what I need! Since I have id in my object I will use the second one to create and update by one query!

Be aware that this query is not optimized if you want to load a lot of nodes, but this is the basis :slight_smile:

Actually my plan is to load big data too, in some cases it can be millions of nodes so what is your advice for that scenario ? Thank you for warning!

Do you use CSV or data are coming from a script?

Hi! Could you please explain what are arguments of apoc.merge.node(). I know that first one is array of labels and I assume that second one should identify the node and its' value never should changed. The third one should be properties, which should be created or updated. From documentation I didn'…

Hello @armensanoyan :slight_smile: I answered in your first subject . Regards, Cobra

Iterate over list of objects and create nodes by properties of objects

Neo4j Graph Platform Cypher

Cobra (Cobra) October 28, 2021, 12:24pm 10

Hello @armensanoyan

I answered in your first subject.

Regards,
Cobra

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Iterate over list of objects and create nodes by properties of objects

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