Experiment 5

Resources & Reference Output

Step 1 — Download MongoDB

1. Go to: https://www.mongodb.com/try/download/community

2. Select:

   • Version: 8.2.5
   • Platform: Windows
   • Package: msi

3. Click Download

Step 2 — Install MongoDB

1. Double-click the .msi file
2. Click Next → Accept license → Choose Complete
3. On Service Configuration leave everything default
4. Uncheck MongoDB Compass (optional)
5. Click Install → Finish

Step 3 — Download & Install mongosh

1. Go to: https://www.mongodb.com/try/download/shell
2. Select Windows → MSI
3. Download → double-click → Next → Install → Finish

Step 4 — Create the data folder

Open Command Prompt as Administrator and run:

mkdir C:\data\db

Step 5 — Add MongoDB to PATH

1. Press Win + S
2. Search Environment Variables
3. Open Edit the system environment variables
4. Click Environment Variables

Under System Variables

1. Select Path
2. Click Edit
3. Click New and add

C:\Program Files\MongoDB\Server\8.2\bin

Add another path:

C:\Users\YourName\AppData\Local\Programs\mongosh

Replace YourName with your Windows username.

Click OK on all windows.

Step 6 — Verify installation

Close terminals and open a new Command Prompt.

Run:

mongod --version
mongosh --version

Both should print version numbers.

Step 7 — Start MongoDB server

Open Command Prompt Window 1 and run:

mongod

Leave this window open.

Step 8 — Open mongosh

Open Command Prompt Window 2 and run:

mongosh

You should see:

test>

Step 9 — Paste and run the Experiment 5 script

Once you see test>, paste this script:

use("CRUD_DB");

db;

// Insert one
db.students.insertOne({name:"Rushil", age:21, course:"BTech"});

// Insert many
db.students.insertMany([
  {name:"Aarav", age:22, course:"AIML"},
  {name:"Ishita", age:20, course:"CSE"}
]);

// Find all
print("\n-- find() --");
db.students.find().forEach(printjson);

// find().pretty()
print("\n-- find().pretty() --");
db.students.find().forEach(printjson);

// Delete Rushil
db.students.deleteOne({name:"Rushil"});
print("\n-- After deleteOne Rushil --");
db.students.find().forEach(printjson);

// Update Aarav age to 23
db.students.updateOne({name:"Aarav"}, {$set:{age:23}});
print("\n-- After updateOne Aarav age=23 --");
db.students.find().forEach(printjson);

// find().pretty() again after update
print("\n-- find().pretty() after update --");
db.students.find().forEach(printjson);

Press Enter and all commands will run sequentially.

Note: If mongod says MongoDB is already running, skip Step 7 and directly open mongosh.