The Full Stack Web Development - Finding Documents

The video tutorial covers various methods to retrieve data from a MongoDB database, including using the find and findOne functions. It explains how to apply conditions similar to SQL's WHERE clause, query arrays and objects, and use regular expressions for pattern matching. The tutorial also demonstrates how to limit the data returned by queries and highlights the importance of exact matches in object queries.

What function can be used to make the output of a MongoDB query more readable?

• arrange

• format

• beautify

• pretty

How can you query a MongoDB collection to find documents with a specific field value, similar to a WHERE clause in SQL?

• Use the find method with a condition object

• Use the search method with a filter

• Use the select method with a criteria

• Use the match method with a condition

When querying an array field in MongoDB, how can you find documents that contain a specific value in the array?

• Use the find method with the value

• Use the find method with the array value

• Use the match method with the array

• Use the arrayContains method

How can you query a nested object in MongoDB to match a specific property?

• Use the find method with dot notation

• Use the match method with object path

• Use the search method with nested criteria

• Use the select method with property path

What is the purpose of using regular expressions in MongoDB queries?

• To filter numeric fields

• To sort the results

• To match patterns in string fields

• To format the output

What does the findOne method in MongoDB do?

• Finds all documents matching a condition

• Finds the first document matching a condition

• Finds a document and deletes it

• Finds a document and updates it

How can you exclude specific fields from the results of a MongoDB query?

• Set the field value to null

• Use the exclude method

• Set the field to 0 in the projection

• Use the omit method