MongoDB Programming Masterclass (50 Chapters, 10 Phases)
📌 Covered in this course:
NoSQL Basics · BSON Documents · Collections · ObjectId · Atlas Cloud · Compass GUI · mongosh · CRUD Operations · Query Operators · Projection · Sorting & Pagination · Array Updates · Upserts · Schema Validation · B-Tree Indexes · Compound Indexes · Geospatial & TTL · explain() · Aggregation Pipeline ($match, $group, $unwind, $lookup) · Node.js Driver · Mongoose ODM (Schemas, Models, Middleware, Population) · ACID Transactions · Replication · Sharding · Backups · Security & RBAC · Change Streams · Top 50 Interview Q&A
Welcome to Our Compiler's MongoDB Complete Master Course. MongoDB is the leading document-oriented NoSQL database powering high-performance modern web applications, microservices, and cloud architectures. From collection creation, BSON documents, and flexible schema modeling to complex aggregation pipelines, Mongoose ODM integration in Node.js, transactions, sharding, and interview preparation, this 50-chapter course covers every essential concept in depth.
🎯 Ready to Master MongoDB Engineering?
Choose where to start: explore NoSQL introduction, CRUD operations, indexing, aggregation framework, Mongoose ODM, or interview prep:
📚 Master Course Curriculum
Phase 01
MongoDB & NoSQL Basics
01
1. What is MongoDB & NoSQL?
MongoDB ante enti? · NoSQL database · BSON vs JSON · Flexible schema · MongoDB architecture · Advantages
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02
2. MongoDB vs SQL Databases
Database/Collection/Document vs DB/Table/Row · Primary key _id · $lookup vs JOINs · Flexible schema comparison
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03
3. MongoDB Installation & Setup
MongoDB Community Edition · Starting mongod service · Port configuration (27017) · macOS/Linux/Windows setup
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04
4. MongoDB Atlas Cloud Database
Atlas cloud clusters · Free tier M0 · IP allowlist · Database users & credentials · Atlas Connection Strings
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05
5. MongoDB Compass & mongosh CLI
Compass GUI interface · mongosh REPL shell · Database navigation (`show dbs`, `use db`, `show collections`)
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Phase 02
Databases, Collections & BSON Documents
06
6. Databases & Collections Management
Creating databases · db.createCollection() · Dropping databases & collections · Capped collections · Time-series
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07
7. Documents & BSON Data Types
Document structures · BSON data types (String, Int, Long, Double, Date, Boolean, Array, Object, Null, Binary)
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08
8. The _id Field & ObjectId Mechanics
_id field primary key · 12-byte ObjectId structure (timestamp, machine, process, counter) · Custom IDs · UUIDs
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09
9. JSON vs BSON Deep Dive
JSON text format vs BSON binary format · Extended JSON v2 · Serialization speed · Type richness comparison
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10
10. Data Modeling & Schema Design
Embedded documents vs Document references · 1-to-1, 1-to-Many, Many-to-Many relationships · Denormalization rules
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Phase 03
CRUD Operations — Reading & Writing Data
11
11. Inserting Documents
insertOne() · insertMany() · Write Concern · Ordered vs Unordered inserts · Duplicate key errors
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12
12. Finding Documents & Query Selectors
find() · findOne() · Query filters · Equality matching · Cursor objects · Pretty printing
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13
13. Comparison Operators
$eq · $ne · $gt · $gte · $lt · $lte · $in · $nin query comparison operators
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14
14. Logical Operators
$and · $or · $not · $nor logical query evaluation · Combining multiple filter clauses
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15
15. Element & Evaluation Operators
$exists · $type · $regex · $expr · $text · $mod query evaluation operators
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Phase 04
Advanced Querying, Array & Embedded Documents
16
16. Querying Arrays & Multikey Fields
$all · $elemMatch · $size · Array index element queries · Matching array elements
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17
17. Querying Nested & Embedded Documents
Dot notation ("instructor.name") · Exact document matching · Embedded object filters
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18
18. Projection & Field Selection
Selecting fields ({ title: 1, level: 1, _id: 0 }) · Sensitive field exclusion · Projection performance
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19
19. Sorting, Limiting & Pagination
sort({ level: 1 }) · limit() · skip() · Range-based cursor pagination vs skip-limit pagination
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20
20. Updating Documents & Field Modifiers
updateOne() · updateMany() · replaceOne() · $set · $unset · $inc · $mul · $rename · $min · $max · $currentDate
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Phase 05
Array Updates, Upserts & Deletions
21
21. Updating Arrays in Documents
$push · $addToSet · $pop · $pull · $pullAll · Array positional operators ($ and $[])
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22
22. Upsert Operations & FindAndModify
Upsert option ({ upsert: true }) · findOneAndUpdate() · findOneAndDelete() · replaceOne()
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23
23. Deleting Documents & Collection Cleanup
deleteOne() · deleteMany() · Soft delete vs Hard delete · Safe delete workflow
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24
24. Bulk Write Operations
bulkWrite() · Ordered vs Unordered bulk executions · Performance optimization for high-throughput batching
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25
25. Schema Validation & JSON Schema
Collection validator rules ($jsonSchema) · Validation levels (off, strict, warn) · Field type enforcement
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Phase 06
Indexing & Performance Optimization
26
26. Indexing Fundamentals
Index ante enti? · Default _id index · Single field index · Unique index · Sparse & Partial indexes · TTL index
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27
27. Compound Indexes & Prefix Rule
Compound index · Field order · Equality fields · Sort fields · Range fields · Prefix rule · Covered queries
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28
28. Specialized Indexes: Multikey, Text & Hashed
Multikey indexes on arrays · Text search indexes ($text) · Unique indexes · Hashed indexes for sharding
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29
29. Geospatial & TTL Indexes
GeoJSON format · 2dsphere indexes ($near, $geoWithin) · Time-To-Live (TTL) auto-expiring documents
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30
30. Query Performance Analysis with explain()
explain("executionStats") · Query planner · COLLSCAN vs IXSCAN · Covered query · Slow operation monitoring
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Phase 07
Aggregation Framework Pipeline
31
31. Aggregation Pipeline Introduction
Aggregation pipeline stages · $match · $project · $sort · $limit · $skip · $count · $group · $unwind · $lookup
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32
32. Aggregation Expressions & Operators
Arithmetic, String, Date expressions · $cond · $ifNull · $map · $filter · $reduce · $mergeObjects
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33
33. Advanced Aggregation: $lookup & $facet
$lookup · $unwind · $facet · $bucket · $bucketAuto · $graphLookup · $unionWith · $merge · $out
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34
34. Reporting Project & Leaderboards
Course completion report · User progress report · Quiz score report · Popular language report · Daily submissions
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35
35. Transactions & Consistency
Transaction ante enti? · Single-document atomicity · Multi-document transactions · Sessions · Commit · Abort
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Phase 08
Application Integration & Multi-Language Drivers
36
36. MongoDB with Node.js
MongoDB Node.js driver · Connection URI · MongoClient · Collection access · Express & Mongoose integration
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37
37. MongoDB with Python (PyMongo)
PyMongo driver · MongoClient · Query filters · Flask, Django & FastAPI integration
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38
38. MongoDB with Java (Spring Data MongoDB)
Java MongoDB driver · BSON Documents · Filters & Projections · Spring Data MongoDB repository pattern
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39
39. MongoDB with C# (.NET Driver)
MongoDB .NET driver · POCO classes · Builders · ASP.NET Core integration & Repository pattern
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40
40. Users, Roles & Security Controls
Database users · Authentication & Authorization · Built-in roles (readWrite) · SCRAM · TLS/SSL · NoSQL injection
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Phase 09
Backup, Replication & Scaling
41
41. Backup & Restore (mongodump & Restore)
Logical backup · mongodump · mongorestore · Export JSON · Import JSON · Atlas point-in-time recovery
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42
42. Replication & High Availability
Replica set · Primary node · Secondary nodes · Elections · Automatic failover · Read preferences · Oplog
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43
43. Real-Time Change Streams
Change stream ante enti? · Watching a collection / database / deployment · Insert/Update/Delete events · Real-time
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44
44. Sharding & Horizontal Scaling
Sharding · Horizontal scaling · Shard · Config server · mongos router · Shard key · Range vs Hashed sharding
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45
45. Testing & Database Metrics Monitoring
Unit & Integration testing · Test databases & fixtures · Seed data · Slow operation logs · Atlas dashboards
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Phase 10
Our Compiler Schema & Interview Prep
46
46. Our Compiler Platform Schema Design
users · languages · tutorials · lessons · quizzes · questions · userProgress · bookmarks · codeSubmissions
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47
47. GridFS for Large File Storage
GridFS specification · fs.files & fs.chunks collections · Streaming files >16MB · Audio/video asset storage
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48
48. MongoDB Time-Series & Search
Native Time-Series collections · Granularity settings · Atlas Search (Lucene text & vector search)
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49
49. Enterprise Database Design Patterns
Subset pattern · Bucket pattern · Outlier pattern · Extended reference pattern · Polymorphic pattern
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50
50. Top 50 MongoDB Technical Interview Q&A
Top 50 MongoDB Interview Questions & Answers · BSON vs JSON · Indexing rules · Transactions vs Relational JOINs
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