MongoDB Mastering MongoDB for Beginners (Theory and Projects) - Solution (Update Operators) - `4

The video tutorial explains how to load data into a MongoDB collection and write a query to increment the quantity of products with more than 20 orders by two. It demonstrates using the updateMany function to execute the query and verifies the results by checking the updated quantities in the database.

What is the first step in preparing the data for updates in MongoDB?

• Creating a new database

• Deleting old collections

• Writing a query to update data

• Loading the data dump into MongoDB

Which function is used to update multiple documents in MongoDB?

• updateOne

• updateAll

• updateMany

• updateMultiple

What condition is used to select products for quantity increment?

• Products with no orders

• Products with exactly 20 orders

• Products with less than 10 orders

• Products with more than 20 orders

After the update, what is the new quantity for a product that initially had a quantity of 10?

• 10

• 12

• 8

• 11

What is the purpose of the 'increment' operation in the update query?

• To decrease the quantity by a specified number

• To reset the quantity to zero

• To increase the quantity by a specified number

• To multiply the quantity by a specified number