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SQL Alchemy dialect for Neo4j

This package provides the SQL dialect for Neo4j, using the official JDBC driver (the Neo4j "BI Connector" )

Installation

pip install sqlalchemy-neo4j

Prerequisites

  • Java 8 / 11
  • Download the Neo4j BI Connector

    The reason the JAR is not included in the package is due to licensing concerns. I may add the jar into the bundle in the future.

  • Add the jar to the classpath, either directly via the CLASSPATH environment variable or while initializing the JVM

    You can also use the NEOJDBC_WARMUP environment variable, which will ensure we reuse an existing jpype instance or create a new one ( with default parameters )

Getting started

from sqlalchemy import create_engine 

# This happens automatically if you set the NEOJDBC_WARMUP environment variable
jpype.startJVM()

eng = create_engine("neo4j+jdbc://neo4j-neo4j:7687/neo4j?UID=neo4j&PWD=QUOTED_PASSWORD&LogLevel=6&StrictlyUseBoltScheme=false")

execute = engine.execute("select * from Node.YOUR_NODE limit 1")
rows = execute.fetchall()
for row in rows:
    print(row)

See more examples

Related projects

  • Neo4j Metabase Driver - Use Neo4j with Metabase. Use both SQL and Cypher ( the driver uses the same underlying BI connector for SQL queries )

Future

  • Add Cypher support
  • Add support for Cypher views in JDBC driver
  • Add ORM support and testing

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