How to add alias name for a field in mongodb?

Question

My result is given below;

db.userdetail.find({}, {UserName: 1, _id:1}).pretty();

Result:

{ 
    "_id" : ObjectId("572981ddbe0da6156de04167"), 
    "UserName" : "anil"
}

Here how do I change UserName to name and _id to value, is it possible?

Answer 1

You could use mongodb's aggregation framework, although I would not recommend it for big queries (you might hit memory limits) or very common queries (consumes more resources)