MongoDB CRUD Challenges - Practical Coding Exercises

Insert Multiple Documents

Insert three new product documents with fields: name, category, price.

Expected output: Three new product documents added to the collection.

Hint: Use insertMany() with an array of objects.

Query and Sort Documents

Find all products in the 'electronics' category and sort them by price ascending.

Expected output: List of electronics products sorted by price.

Hint: Use find() with a filter and sort() method.

Update Multiple Documents

Increase the price of all 'books' category products by 5%.

Expected output: Prices of all books increased by 5%.

Hint: Use updateMany() with $mul operator.

Delete Documents by Condition

Delete all users who have not logged in for over a year.

Expected output: All inactive user documents removed.

Hint: Use deleteMany() with a date filter.

The insertMany() command is used to insert multiple documents into a collection in a single operation.

Use the updateOne() command with the $set operator to modify a specific field in a document.

deleteOne() removes the first document matching the filter, while deleteMany() removes all documents matching the filter.