Update MongoDB Records

# Introduction

In this lab, you will learn how to update MongoDB records using various techniques, including updating a single document, performing bulk updates, and utilizing update operators. You will also explore how to handle update results and verify the updated data. This lab covers the fundamental CRUD (Create, Read, Update, Delete) operations in MongoDB, equipping you with the necessary skills to effectively manage your data in a MongoDB database.

The lab starts by demonstrating how to update a single document using the `updateOne()` method, followed by exploring bulk updates with the `updateMany()` method. You will then dive into using update operators, such as `$set`, to modify specific fields within documents. Additionally, you will learn how to handle the update results and verify the updated data to ensure the integrity of your MongoDB records.

## Setup

#!/bin/bash

# Exit on any error
set -e

# Ensure project directory exists
mkdir -p ~/project

# Install MongoDB Shell
wget -qO- https://www.mongodb.org/static/pgp/server-8.0.asc | sudo tee /etc/apt/trusted.gpg.d/server-8.0.asc
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu jammy/mongodb-org/8.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-8.0.list
sudo apt-get update -y
sudo apt-get install -y mongodb-mongosh

# Start MongoDB service
sudo service mongodb start

# Wait for MongoDB to start
sleep 5

# Prepare MongoDB database and collection
mongosh << EOF
use mylab_database
db.books.drop()
db.books.insertMany([
  {
      title: "JavaScript Fundamentals",
      author: "Mike Johnson", 
      year: 2022,
      pages: 350
  },
  {
      title: "Python Deep Dive",
      author: "Sarah Williams",
      year: 2021,
      pages: 450
  },
  {
      title: "Machine Learning Basics",
      author: "John Doe",
      year: 2020,
      price: 39.99
  }
])
EOF

echo "MongoDB Lab environment setup complete!"