MongoDB Mastering MongoDB for Beginners (Theory and Projects) - Solution($expr)

This video tutorial demonstrates how to create a collection in MongoDB and perform various queries using the expr operator. It covers querying documents where budget equals spent, budget is less than spent, and spent is greater than budget. Additionally, it explains how to use the AND operator to find documents where the category is either food or drinks and the budget is less than the spent amount.

What is the first step in setting up a MongoDB collection?

• Create a collection and insert data

• Set up a server

• Create a database

• Run a find operation

Which operator is used to find documents where the budget equals the spent amount?

• NE

• EQ

• LT

• GT

How do you find documents where the budget is less than the spent amount?

• Use the LT operator

• Use the NE operator

• Use the EQ operator

• Use the GT operator

Which operator is used to find documents where the spent amount is greater than the budget?

• EQ

• LT

• GT

• IN

What is the purpose of the AND operator in MongoDB queries?

• To combine multiple conditions

• To find documents with equal values

• To sort documents

• To delete documents

How can you filter documents by category being either 'food' or 'drinks'?

• Use the LT operator

• Use the EQ operator

• Use the IN operator

• Use the GT operator

Which condition is used to find documents where the budget is less than the spent amount and the category is either 'food' or 'drinks'?

• AND and IN

• GT and LT

• EQ and IN

• OR and EQ