cypher

title	Cypher Query Language
module	cypher
id	cypher-index
order	0
description	Cypher query language guides and reference
tags	cypher query language reference

Cypher Query Language

Complete guides for the Cypher query language in Nexus.

Guides

Cypher Basics

Basic Cypher syntax and patterns:

• Node patterns
• Relationship patterns
• Basic queries
• Filtering and sorting
• Aggregations

Advanced Cypher

Advanced queries and patterns:

• Variable-length paths
• OPTIONAL MATCH
• Complex patterns
• Subqueries
• List and pattern comprehensions
• Map projections

Functions Reference

All Cypher functions:

• String functions
• Mathematical functions
• Temporal functions
• List functions
• Aggregation functions

Complete Cypher Guide

Comprehensive Cypher reference:

• All clauses
• All functions
• All operators
• Best practices
• Performance tips

Quick Reference

Basic Patterns

// Match nodes
MATCH (n:Person) RETURN n

// Match relationships
MATCH (a:Person)-[:KNOWS]->(b:Person) RETURN a, b

// Filter
MATCH (n:Person) WHERE n.age > 25 RETURN n

// Create
CREATE (n:Person {name: "Alice", age: 30})

Common Operations

// Count
MATCH (n:Person) RETURN COUNT(n)

// Group by
MATCH (n:Person) RETURN n.city, COUNT(n) AS count

// Order by
MATCH (n:Person) RETURN n ORDER BY n.age DESC

// Limit
MATCH (n:Person) RETURN n LIMIT 10

Related Topics

• API Reference - REST API for Cypher
• Vector Search - Vector similarity search
• Use Cases - Real-world examples