Remove only one document in MongoDB

You need to perform two separate queries for this

take only one item from the matching filters

var item = db.collection.findOne({'condition':'some condition'})

and delete the item by using the id

 db.collection.remove({_id: item._id});

db.collection.remove now has a justOne flag

http://docs.mongodb.org/manual/reference/method/db.collection.remove/#db.collection.remove

If there are multiple records and you want to delete only first record, then set justOne parameter in remove() method.

Here, you want to delete only 1. Thus, set "justOne" parameter as 1.

db.collection.remove({'condition':'some condition'},1);

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