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Neo4j Create Nodes

Node is a data or record in a graph database. In Neo4j, the CREATE statement is used to create a node. You can create the following things by using CREATE statement:

  • Create a single node
  • Create multiple nodes
  • Create a node with a label
  • Create a node with multiple labels
  • Create a node with properties
  • Returning the created node

Create a Single Node

To create a single node in Neo4j, specify the name of the node along with CREATE statement.

Syntax:

Note: You can add or ignore semicolon (;). It is optional.

Example1:

Open the localhost on the browser: http://localhost:7474/browser/ and use the following code:

Neo4j Create nodes 1

Output:

Neo4j Create nodes 2

You can see that a node is created.

Verification

Execute the following code to verify the creation of the node type:

Output:

Neo4j Create nodes 3

Create Multiple Nodes

To create multiple nodes in Neo4j, use CREATE statement with the name of nodes separated by a comma.

Syntax:

Example2:

Let's create 2 nodes: primary_node and secondary_node.

Neo4j Create nodes 4

Verification

Output:

Neo4j Create nodes 5

Note: It is displaying 3 nodes because we have created a node already in example1.


Create a node with a label

In Neo4j, a label is used to classify the nodes using labels. CREATE statement is used to create a label for a node in Neo4j.

Syntax:

Example3:

Let's create a node "Kalam" with a label "scientist".

Output:

Neo4j Create nodes 6

Verification

Output:

Neo4j Create nodes 7

Create a Node with Multiple Labels

To create multiple labels with a single node, you have to specify the labels for the node by separating them with a colon " : ".

Syntax:

Example:

Create a node "Kalam" with label "person", "president", and "scientist".

Output:

Neo4j Create nodes 8

Verification

Neo4j Create nodes 9

Create Node with Properties

In Neo4j, properties are the key-value pairs which are used by nodes to store data. CREATE statement is used to create node with properties, you just have to specify these properties separated by commas within the curly braces "{ }".

Syntax:

Example:

Let's create a node "Ajeet", having the following properties:

Output:

Neo4j Create nodes 10

Verification

Neo4j Create nodes 11

Returning the created node

MATCH (n) RETURN n command is used to view the created nodes. This query returns all the existing nodes in the database.

But if you want to return the newly created node use the RETURN command with CREATE command:

Syntax:

Example:

Create a node "Sonoo" with following properties and return that node.

Output:

Neo4j Create nodes 12




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