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MongoDB Advance 🍃

A complete MongoDB course in 30 hands-on .txt files — from basic CRUD to advanced aggregation pipelines, indexing, schema validation, and database maintenance. Run everything directly in mongosh.

No videos, no slides. Just real shell commands with inline explanations, copy-pasteable into your terminal. Each file is a self-contained lesson you can work through at your own pace.

Table of Contents

Who This Is For

  • Backend developers who want to go beyond basic find() and insert()
  • Developers using MongoDB in production who want to understand aggregations deeply
  • Anyone who learns better by running commands than watching lectures
  • DBAs or engineers who need a quick reference for advanced MongoDB operations

How to Use

  1. Clone the repo:
git clone https://github.com/Wcoder547/Mongdb_advance.git
cd Mongdb_advance
  1. Open any .txt file — each one is a standalone lesson with commands and explanations.
  2. Open your terminal and start mongosh:
mongosh
  1. Copy the commands from the file and run them directly in the shell.

No installation beyond MongoDB itself. No dependencies. No setup.

Course Outline

The files are numbered in learning order — start at 1_basic.txt and work forward, or jump to any topic you need.

Foundations

File Topic
1_basic.txt Database creation, collections, basic shell usage
2_insertData.txt insertOne, insertMany, bulk inserts
3_datatypes.txt BSON types — strings, numbers, dates, ObjectId, arrays, embedded docs
4_schemaValidation.txt JSON Schema validation on collections
5_update&Replace.txt updateOne, updateMany, replaceOne
6_deleteDocument.txt deleteOne, deleteMany
7_findDocuments.txt find, count, sort, limit, projection

Query Operators

File Topic
8_comparisonOperators.txt $eq, $ne, $gt, $gte, $lt, $lte, $in, $nin
9_logicalOperaters.txt $and, $or, $not, $nor
10_elementOperator.txt $exists, $type
11_EvaluationQueryOpearator.txt $regex, $mod, $expr, $where
12_findOneUpdate,replace&delete.txt findOneAndUpdate, findOneAndReplace, findOneAndDelete

Aggregation Pipelines

File Topic
13_aggregationPipeline.txt Pipeline basics — $match, $group, $project, $sort
14_aggregationPart2.txt $push, $addToSet, accumulators
15_aggregationPart3.txt $lookup (joins), $replaceRoot
16_aggregationPart4.txt $bucket, $bucketAuto
17_aggregationPart5.txt $addFields, $unwind
18_aggregationPart6.txt $out, $merge, $unionWith
19_aggregationPart7.txt $facet, $fill

Operators Inside Aggregations

File Topic
20_arithmaticOperaotr.txt $add, $subtract, $multiply, $divide, $mod
21-stringOperators.txt $concat, $toLower, $toUpper, $dateToString, $indexOfBytes
22_dateOperators.txt $year, $month, $dayOfWeek, $dateSubtract, etc.
23_arrayOperators.txt $size, $arrayElemAt, $filter, $map, $reduce
24_typeOperators.txt $toInt, $toString, $toDate, $convert
26_conditional.txt $cond, $ifNull, $switch

Database Administration

File Topic
25_cappedCollection.txt Capped collections — fixed-size, auto-expiry
27_indexes.txt Single, compound, text, and geospatial indexes; explain()
28_importJSON.txt mongoimport — importing JSON datasets
29_backup.txt mongodump and mongorestore for backups
30_authentication&UserManagment.txt Creating users, roles, enabling auth in mongod

Prerequisites

  • MongoDB installed locally (install guide)
  • mongosh shell available in your terminal
  • Basic understanding of what a database and collection are — everything else is taught from file 1

Tools Used

  • mongosh — MongoDB's official interactive shell
  • BSON types — MongoDB's binary data format
  • JSON Schema — for collection-level schema validation
  • mongoimport — for importing JSON/CSV datasets
  • mongodump / mongorestore — for backup and restore operations

About

This repo came out of going through MongoDB seriously — not just enough to hook it up to an Express app, but understanding how the query engine works, how aggregation pipelines transform data, how indexes affect performance, and how to manage a database in production.

The .txt format was a deliberate choice: no framework, no tooling, just you and the shell. Every command in here has been run and verified. It's the reference I wished existed when I was learning.

Built by Waseem Akram — Full-Stack Developer and DevOps Engineer based in Pakistan, working across the MERN stack, Generative AI integrations, and cloud automation.

If this helped you, consider giving it a ⭐ — it helps others find it.