Introduction

In this tutorial, we will guide you through the basics of MongoDB, a popular NoSQL database. We will show you how to install MongoDB, create collections and documents, and perform basic CRUD operations.

By the end of this tutorial, you will be able to:

1. Install and set up MongoDB.
2. Understand MongoDB's basic structure.
3. Create and manage databases, collections, and documents.
4. Perform basic CRUD (Create, Read, Update, Delete) operations.

Prerequisites: Basic knowledge of databases and JavaScript would be helpful.

Step-by-Step Guide

Installation and Setup

1. Download MongoDB from the official site.
2. Install MongoDB and set up the environment.

After installation, you can interact with MongoDB using the MongoDB shell, an interactive JavaScript interface.

MongoDB Structure

MongoDB organizes data into:

1. Databases: Containers for collections.
2. Collections: Groups of MongoDB documents, equivalent to tables in relational databases.
3. Documents: A record in a MongoDB collection, equivalent to a row in table-based databases.

Basic CRUD Operations

1. Creating a Database and Collection
2. Use the use command to switch to a database. If the database doesn't exist, MongoDB will create it.

3. Use the db.createCollection("collectionName") command to create a collection.

4. Inserting Documents

5. Use the db.collectionName.insert(document) command to insert a document into a collection.

6. Reading Documents

7. Use the db.collectionName.find() command to find documents in a collection.

8. Updating Documents

9. Use the db.collectionName.update(query, update) command to update documents.

10. Deleting Documents

11. Use the db.collectionName.remove(query) command to delete documents.

Code Examples

1. Creating a Database and Collection
   ```javascript
   // Switch to the 'test' database. If it doesn't exist, MongoDB will create it.
   use test

// Create a 'users' collection.
db.createCollection("users")
```

1. Inserting Documents
   javascript // Insert a document into the 'users' collection. db.users.insert({ name: "John Doe", email: "johndoe@example.com", age: 30 })

2. Reading Documents
   javascript // Find all documents in the 'users' collection. db.users.find()

3. Updating Documents
   javascript // Update the 'age' field of the document where the 'name' is 'John Doe'. db.users.update( { name: "John Doe" }, { $set: { age: 31 } } )

4. Deleting Documents
   javascript // Delete the document where the 'name' is 'John Doe'. db.users.remove({ name: "John Doe" })

Summary

We have covered how to install and set up MongoDB, understand its basic structure, and perform CRUD operations. The next step is to learn how to create complex queries and use MongoDB in a programming language, such as JavaScript or Python.

For additional resources, check out the official MongoDB documentation.

Practice Exercises

1. Exercise: Create a 'products' collection and insert a document.
   Solution:
   javascript use test db.createCollection("products") db.products.insert({ name: "iPhone", price: 699 })

2. Exercise: Update the 'price' of the 'iPhone'.
   Solution:
   javascript db.products.update( { name: "iPhone" }, { $set: { price: 799 } } )

3. Exercise: Delete the 'iPhone' document.
   Solution:
   javascript db.products.remove({ name: "iPhone" })

Keep practicing and try to create and manage your own databases and collections!