Multi-Database Management in Neo4j

1. Introduction

Multi-database management in Neo4j allows users to create and manage multiple databases within a single Neo4j instance. This functionality enhances data organization, application scalability, and facilitates efficient data access across different domains.

2. Key Concepts

3. Setup

To manage multiple databases, ensure you are using Neo4j version 4.0 or later. Follow these steps to set up:

1. Install Neo4j via the official website or package manager.
2. Start the Neo4j server.
3. Access the Neo4j Browser at http://localhost:7474.
4. Log in using your credentials (default: neo4j/neo4j).

4. Operations

Operations for creating and managing multiple databases can be performed using the Neo4j Browser or Cypher queries.

4.1 Creating a Database

To create a new database, use the following Cypher command:

CREATE DATABASE myNewDatabase;

4.2 Switching Databases

To switch between databases, use the command:

USE myNewDatabase;

4.3 Dropping a Database

To delete a database, execute:

DROP DATABASE myNewDatabase;

4.4 Listing Databases

To view all databases in the instance:

SHOW DATABASES;

5. Best Practices

• Regularly back up your databases.
• Use descriptive names for databases to enhance manageability.
• Monitor database performance and optimize queries regularly.
• Utilize Neo4j's built-in security features to manage user access across databases.

6. FAQ