The Complete Guide To Projection Operation In Mongodb P 4 Operars

Mongodb projection is the process of selecting only the specific fields we want to retrieve from a document rather than. In this tutorial, you'll how to use the mongodb projection that allows you to select fields to return from a query

The projection operator in mongodb controls which fields are included or excluded in query results To limit the amount of data that mongodb sends to applications,. Although the array field grades may contain multiple elements that are greater than or equal to 85, the $ projection operator returns.