sqlalchemy-neo4j 0.2.dev0

SQL Alchemy dialect for Neo4j

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
from 

# 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