54
votes
22
answers
937
views
Get names of all keys in the collection
I'd like to get the names of all the keys in a MongoDB collection. For example, from this: db.things.in
59
votes
14
answers
2.5K
views
Retrieve only the queried element in an object array in MongoDB collection
Suppose you have the following documents in my collection: { "_id":ObjectId("562e7c594c12942f08fe4192"),
59
votes
11
answers
2K
views
Update MongoDB field using value of another field
In MongoDB, is it possible to update the value of a field using the value from another field? The equivalent
