Deleting Documents

The video tutorial covers delete operations in MongoDB, focusing on the use of deleteMany and deleteOne methods. It explains how to delete multiple documents using deleteMany and provides a challenge to use deleteOne for a single document. The tutorial emphasizes the importance of using promises for handling asynchronous operations and prepares viewers for integrating MongoDB with Express in future applications.

What are the two methods introduced for deleting documents in MongoDB?

• eraseMany and eraseOne

• deleteAll and deleteSome

• removeAll and removeOne

• deleteMany and deleteOne

What was the deprecated method for removing data in MongoDB?

• erase

• delete

• clear

• remove

Which method is used to delete multiple documents in a MongoDB collection?

• deleteOne

• erase

• remove

• deleteMany

In the example provided, which age group was targeted for deletion using deleteMany?

• 27

• 25

• 30

• 29

What is the main goal of the challenge presented in the video?

• To read a document

• To delete a single document using deleteOne

• To update a document

• To create a new document

What should you use instead of a callback when using deleteOne in the challenge?

• A promise

• A variable

• A loop

• A function

What is the primary focus of the tutorial's conclusion?

• Learning about SQL databases

• Creating a user interface

• Integrating MongoDB with Express

• Building a new application