Learn MongoDB

Learn the fundamentals of querying documents using find() with filters, cursors, and basic query patterns.

Master insertOne() and insertMany() to add documents to your MongoDB collections efficiently.

Use updateOne(), updateMany(), and replaceOne() with update operators like $set, $inc, and $push.

Remove documents from collections using deleteOne(), deleteMany(), and understand write concerns.

Explore comparison, logical, and element query operators to build powerful filters.

Build multi-stage data processing pipelines with $match, $group, $sort, and $project.

Optimize query performance with single-field, compound, and multikey indexes.

Query and update arrays using $elemMatch, $all, $push, $pull, and positional operators.

Navigate nested document structures with dot notation and nested query filters.

Create text indexes and perform full-text searches with scoring and language support.

Control which fields are returned in query results using inclusion and exclusion projections.

Perform joins, flatten arrays, and run parallel pipelines for complex data analysis.

Learn embedding vs referencing, polymorphic patterns, and the bucket pattern for time-series data.

Implement ACID transactions across multiple documents and collections with session management.

Watch for real-time changes in collections and databases using change streams and resume tokens.