How can I perform advanced queries using Mongoose?

How can I perform advanced queries using Mongoose?

You can use methods like find(), aggregate(), and populate() for advanced queries in Mongoose.

Can you give me an example of using the aggregate() method?

Sure! You can use Model.aggregate([{ $match: { age: { $gt: 18 } } }]) to find documents where age is greater than 18.

What about using populate() to join collections?

You can use Model.find().populate('fieldName') to join documents from another collection based on the reference.

Are there any performance considerations I should be aware of?

Yes, using aggregate() can be more efficient for complex queries, but always analyze your query performance.