3.3.11. CREATE

The CREATE clause is used to create graph elements — nodes and relationships.

In the CREATE clause, patterns are used extensively. Read Section 3.2.9, “Patterns” for an introduction.

3.3.11.1. Create nodes

Create single node

Creating a single node is done by issuing the following query:

Query. 

CREATE (n)

Nothing is returned from this query, except the count of affected nodes.

Table 3.115. Result

0 rows Nodes created: 1

(empty result)

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) CREATE (n)

Create multiple nodes

Creating multiple nodes is done by separating them with a comma.

Query. 

CREATE (n),(m)

Table 3.116. Result

0 rows Nodes created: 2

(empty result)

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) CREATE (n), (m)

Create a node with a label

To add a label when creating a node, use the syntax below:

Query. 

CREATE (n:Person)

Nothing is returned from this query.

Table 3.117. Result

0 rows Nodes created: 1 Labels added: 1

(empty result)

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) CREATE (n:Person)

Create a node with multiple labels

To add labels when creating a node, use the syntax below. In this case, we add two labels.

Query. 

CREATE (n:Person:Swedish)

Nothing is returned from this query.

Table 3.118. Result

0 rows Nodes created: 1 Labels added: 2

(empty result)

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) CREATE (n:Person:Swedish)

Create node and add labels and properties

When creating a new node with labels, you can add properties at the same time.

Query. 

CREATE (n:Person { name: 'Andres', title: 'Developer' })

Nothing is returned from this query.

Table 3.119. Result

0 rows Nodes created: 1 Properties set: 2 Labels added: 1

(empty result)

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) CREATE (n:Person {name: 'Andres', title: 'Developer'})

Return created node

Creating a single node is done by issuing the following query:

Query. 

CREATE (a { name: 'Andres' })
RETURN a.name

The newly-created node is returned.

Table 3.120. Result
a.name

1 row Nodes created: 1 Properties set: 1

"Andres"

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) CREATE (a {name: 'Andres'}) RETURN a.name

3.3.11.2. Create relationships

Create a relationship between two nodes

To create a relationship between two nodes, we first get the two nodes. Once the nodes are loaded, we simply create a relationship between them.

Query. 

MATCH (a:Person),(b:Person)
WHERE a.name = 'A' AND b.name = 'B'
CREATE (a)-[r:RELTYPE]->(b)
RETURN type(r)

The created relationship is returned by the query.

Table 3.121. Result
type(r)

1 row Relationships created: 1

"RELTYPE"

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) MATCH (a:Person), (b:Person) WHERE a.name = 'A' AND b.name = 'B' CREATE (a)-[r:RELTYPE]->(b) RETURN type(r)

Create a relationship and set properties

Setting properties on relationships is done in a similar manner to how it’s done when creating nodes. Note that the values can be any expression.

Query. 

MATCH (a:Person),(b:Person)
WHERE a.name = 'A' AND b.name = 'B'
CREATE (a)-[r:RELTYPE { name: a.name + '<->' + b.name }]->(b)
RETURN type(r), r.name

The newly-created relationship is returned by the example query.

Table 3.122. Result
type(r) r.name

1 row Relationships created: 1 Properties set: 1

"RELTYPE"

"A<->B"

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) MATCH (a:Person), (b:Person) WHERE a.name = 'A' AND b.name = 'B' CREATE (a)-[r:RELTYPE {name: a.name + '<->' + b.name}]->(b) RETURN type(r), r.name

3.3.11.3. Create a full path

When you use CREATE and a pattern, all parts of the pattern that are not already in scope at this time will be created.

Query. 

CREATE p =(andres { name:'Andres' })-[:WORKS_AT]->(neo)<-[:WORKS_AT]-(michael { name: 'Michael' })
RETURN p

This query creates three nodes and two relationships in one go, assigns it to a path variable, and returns it.

Table 3.123. Result
p

1 row Nodes created: 3 Relationships created: 2 Properties set: 2

[Node[20]{name:"Andres"},:WORKS_AT[0]{},Node[21]{},:WORKS_AT[1]{},Node[22]{name:"Michael"}]

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) CREATE p = (andres {name:'Andres'})-[:WORKS_AT]->(neo)<-[:WORKS_AT]-(michael {name: 'Michael'}) RETURN p

3.3.11.4. Use parameters with CREATE

Create node with a parameter for the properties

You can also create a graph entity from a map. All the key/value pairs in the map will be set as properties on the created relationship or node. In this case we add a Person label to the node as well.

Parameters. 

{
  "props" : {
    "name" : "Andres",
    "position" : "Developer"
  }
}

Query. 

CREATE (n:Person $props)
RETURN n

Table 3.124. Result
n

1 row Nodes created: 1 Properties set: 2 Labels added: 1

Node[20]{name:"Andres",position:"Developer"}

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) CREATE (n:Person $props) RETURN n

Create multiple nodes with a parameter for their properties

By providing Cypher an array of maps, it will create a node for each map.

Parameters. 

{
  "props" : [ {
    "name" : "Andres",
    "position" : "Developer"
  }, {
    "name" : "Michael",
    "position" : "Developer"
  } ]
}

Query. 

UNWIND $props AS map
CREATE (n)
SET n = map

Table 3.125. Result

0 rows Nodes created: 2 Properties set: 4

(empty result)

Try this query live.  CREATE (a:Person {name: 'A'}), (b:Person {name: 'B'}) UNWIND $props AS map CREATE (n) SET n = map