Karan Pratap

I work with MongoDB to handle “unstructured or semi-structured data,” focusing on “flexibility, scalability, and performance.” I start with “NoSQL vs SQL,” then move into core MongoDB concepts like databases, collections, and documents using “JSON Vs BSON.”

I build practical querying skills with indexes, cursors, and projection, using comparison and logical operators such as $eq, $in, $and, $or, $expr, and $exists. I also cover “Ordered and Unordered Inserts,” “Case Sensitivity in MongoDB,” and import workflows like mongoimport.

My strongest work is in the “Aggregation Framework,” where I combine and transform documents using pipeline stages including $match, $group, $project, $sort, $unwind, $limit, $skip, and $filter. I design “Advanced CRUD Operations” alongside updates and deletes using operators like $set, $unset, $rename, $push, and deleteOne/deleteMany.

I also connect MongoDB to applications through “Working with MongoDB Drivers” and “Working with Node.js,” including CRUD via MongoClient and safe connection handling with client.close(). I further streamline development with “Mongoose” as an ODM for structured schemas, validation, relationships, and middleware.