First steps from Neo4J: installation and installation

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# Entry

Neo4J This is a powerful database that works with combined data. Unlike established databases that operate tables, Neo4J uses nodes and relationships. This configuration makes it easier to explore intricate links in data. Neo4J is popular in projects such as social networks, recommendation systems and network analysis.

In this article, it will show you how to install and configure Neo4J. Before installing, we will start with the basic things you need. Then we will review different ways of installing NEO4J, such as Neo4J Desktop or Docker. Finally, we will lead you through the first steps of using Neo4J. At the end of this article you will have fully configured and ready for operate Neo4J. You will also learn how to operate basic commands to start.

# Preliminary requirements

Before installing Neo4J, make sure you have the following:

• Operating system: Neo4J supports MacOS, Linux and Windows
• Java: Neo4J requires java 11 or more (Java 17 is recommended)
• Memory and disk space: Provide at least 2 GB of RAM and enough space for database storage disks

# Installation Neo4J

There are several ways to install NEO4J, depending on your needs:

1. Neo4J Desktop (recommended for development)
2. Neo4J Community Server (for lithe installations)
3. Docker (for container environments)

// Neo4J Desktop

Desicop Neo4J is ideal for programmers who need a user -friendly environment with built -in management tools. It includes visualization tools, Neo4J browser and database management.

1. Download the neo4J desktop: Visit the Neo4J download page and select the Neo4J computer for the operating system.
2. Install the neo4J desktop: Start downloaded installer and follow the instructions on the screen.
3. Start the neo4J desktop: Open the neo4J desktop. You will be asked to create a modern project that will lend a hand you organize your databases.

Desicop Neo4J also contains plugins such as APOC (powerful procedures library) and data learning (GDS), useful for advanced analytical algorithms and charts.

// Neo4J Community Server

Neo4J Community Server This is a free Open Source version that provides basic functionality without added GUI or management tools. This version is lithe and well matched if you want to start Neo4J as an independent server.

1. Download the NEO4J community server: Go to the NEO4J download center and download the Server Community version
2. Escise files: Unpack the downloaded file to the folder in which you want to keep Neo4J files
3. Start the server: In Linux or MacOS, open the terminal, go to a separate directory and run the server with ./bin/neo4j console. In Windows, open the command line, go to a separate directory and run binneo4j.bat console
4. Get access to the server: After starting the server, you can access it http://localhost:7474

// Using Docker

Installing Neo4J via Docker is convenient for people familiar with Docker and wants to implement the processedized NEO4J instance.

1. Pull the image Neo4J:

2. Start Neo4J in a container:

docker run 
    --name neo4j 
    -p7474:7474 -p7687:7687 
    -d 
    -e NEO4J_AUTH=neo4j/password 
    neo4j

3. NEO4J access:

Open the browser and go to http://localhost:7474Then log in with Neo4J as a username and password set in Docker’s command.

# Initial configuration and configuration

After installation, an initial configuration is necessary to ensure that the Neo4J is unthreatening and configured for the specification.

1. Set a powerful password: If you haven’t done it yet, change the default NEO4J password by logging into the Neo4J browser
2. Edit configuration file: Open neo4j.conf In the NEO4J installation directory and adjust the settings if necessary
3. Turn on/off the plugins: On the Neo4J desktop, you can turn on plugins such as APOC (amazing Cypher procedures) and graphics sciences

# Access to the Neo4J browser

The Neo4J browser is an interactive console that allows you to run Cypher’s queries and visualize data as charts. To access it:

1. Open the browser: Go to http://localhost:7474
2. Log in: Enter the username and password
3. Run questions: Apply basic Cypher commands, such as matching, creating and return to start your inquiry and exploring the data
4. Configuration and settings: Adjust the display options, inquiry limits and other settings to personalize your impressions

# Basic commands Cypher

Here is a quick introduction to some basic Cypher commands to start with Neo4J:

Create nodes: Create a node representing the person

CREATE (n:Person {name: 'Alice', age: 30})

Create relationships: Connect two knots with a relationship

MATCH (a:Person {name: 'Alice'}), (b:Person {name: 'Bob'})
CREATE (a)-[:FRIENDS_WITH]->(b)

Recover the nodes: Recover all nodes with a label

MATCH (n:Person) RETURN n

Purchase update: Update the property in the node

MATCH (n:Person {name: 'Alice'})
SET n.age = 31

Remove nodes and relationships: Remove the knot and all its relationships

MATCH (n:Person {name: 'Alice'})
DETACH DELETE n

# Next steps

Now everything is ready to start the first graphic designs. Here are some straightforward ways to learn:

• Experiment with NEO4J plugs: Plugins such as APOC and Science Data Science escalate functionality, making it basic to perform intricate operations
• Discover Cypher: Learn more about the powerful possibilities of Cypher’s query by Documentation Cypher Neo4J
• Build applications in the real world: Consider operate cases such as recommendation systems, network analysis and fraud detection to experience the real power of Neo4J

# Application

Neo4J is a solid database of charts for connected data. His data model and Cypher’s question language make the intricate relationships basic to manage. Neo4J is ideal for social networks, recommendations and network analysis. Thanks to the NEO4J configuration and the basic skill of Cypher, you are ready to examine graph databases and build data -based applications.

Jayita Gulati She is an enthusiast of machine learning and a technical writer driven by her passion for building machine learning models. He has a master’s degree in computer science at the University of Liverpool.