CRUD Operations

Summary

Create, Read, Update, Delete — the fundamental operations for working with MongoDB documents, using methods like `insertOne`, `find`, `updateOne`, `deleteOne`.

• 1Practice each CRUD operation against a local MongoDB collection.
• 2Learn the query operators (`$gt`, `$in`, `$regex`) for more advanced `find` queries.
• 3Compare `updateOne` vs `updateMany` and when each applies.