Template
single collection
multiple collections
mgodatagen
update
indexe
explain
Stage
Database
bson
mgodatagen
[{"_id":1,"name":"name1"},{"_id":2,"name":"name2"},{"_id":3,"name":"name3"}]
Query
db.collection.update({"_id":{"$in":[1,2]}},{"$set":{"name":"newName"}},{"multi":true})
Result