Can't find user by name with MongoDB?

To find the user by name in MongoDB, use find(). Let us create a collection with documents −

> db.demo504.insertOne({"Name":"Chris"});{
   "acknowledged" : true,
   "insertedId" : ObjectId("5e8823ee987b6e0e9d18f570")
}
> db.demo504.insertOne({"Name":"John"});{
   "acknowledged" : true,
   "insertedId" : ObjectId("5e8823f2987b6e0e9d18f571")
}
> db.demo504.insertOne({"Name":"David"});{
   "acknowledged" : true,
   "insertedId" : ObjectId("5e8823f5987b6e0e9d18f572")
}

Display all documents from a collection with the help of find() method −

> db.demo504.find();

This will produce the following output −

{ "_id" : ObjectId("5e8823ee987b6e0e9d18f570"), "Name" : "Chris" }
{ "_id" : ObjectId("5e8823f2987b6e0e9d18f571"), "Name" : "John" }
{ "_id" : ObjectId("5e8823f5987b6e0e9d18f572"), "Name" : "David" }

Following is the query to find a user by name −

> db.demo504.find({Name:"John"});

This will produce the following output −

{ "_id" : ObjectId("5e8823f2987b6e0e9d18f571"), "Name" : "John" }