Filtering

Filter nodes and edges by type and properties.

Node Filtering

Get Nodes with Type Filter

MATCH (p:Person) RETURN p.name, p.age

Property Filtering with Cypher

Use Cypher's WHERE clause for property-based filtering:

MATCH (p:Person) 
WHERE p.city = 'NYC' 
RETURN p.name, p.age

Property Operators

Operator	Example	Description
=	p.age = 30	Equality
<>	p.age <> 30	Not equal
>	p.age > 25	Greater than
<	p.age < 60	Less than
>=	p.age >= 18	Greater or equal
<=	p.age <= 100	Less or equal
CONTAINS	p.name CONTAINS 'John'	Substring match
STARTS WITH	p.name STARTS WITH 'J'	Prefix match
ENDS WITH	p.name ENDS WITH 'n'	Suffix match
IN	p.city IN ['NYC', 'LA']	In list
NOT IN	p.city NOT IN ['SF']	Not in list
IS NULL	p.email IS NULL	Null check
IS NOT NULL	p.email IS NOT NULL	Not null

Edge Filtering

Filter by Source/Target Node

MATCH (a:Person)-[:KNOWS]->(b:Person) 
WHERE a.name = 'Alice'
RETURN b.name

Logical Operators

WHERE p.age > 25 AND p.status = 'active'
WHERE p.city = 'NYC' OR p.city = 'LA'
WHERE NOT p.archived
WHERE p.age > 18 AND (p.city = 'NYC' OR p.city = 'LA')

Creating Indexes

For O(1) property lookups on large datasets:

-- Node index
CREATE INDEX email_idx FOR (n:Person) ON (n.email)

-- Compound index
CREATE INDEX name_status_idx FOR (n:Person) ON (n.name, n.status)

-- Edge index
CREATE INDEX since_idx FOR ()-[r:KNOWS]-() ON (r.since)

Next Steps

• Traversal — path finding
• Cypher Language — WHERE clause details
• API Reference