Remove ($unset) embedded document
db.users.update({ name: "Foo"}, { $unset: { 'a.b.d' : true } })
Updated 1 existing record(s) in 2ms
WriteResult({
"nMatched": 1,
"nUpserted": 0,
"nModified": 1
})
db.users.find({ name: "Foo"})
{
"_id": ObjectId("59895a5d98392edc6c7074ca"),
"name": "Foo",
"email": "foo@company.com",
"technologies": [
"Perl",
"Python",
"JavaScript",
"SQL",
"NoSQL",
"MongoDB"
],
"a": {
"b": {
}
}
}
Fetched 1 record(s) in 2ms