> use tutorial switched to db tutorial
> db.users.insert({username: "smith"})
> db.users.find()
{ "_id" : ObjectId("5100d13f63a6bbddc0629e5c"), "username" : "smith" }> db.users.save({username: "jones"})
> db.users.count()
2
> db.users.find()
{ "_id" : ObjectId("5100d13f63a6bbddc0629e5c"), "username" : "smith" }
{ "_id" : ObjectId("5100d17e63a6bbddc0629e5d"), "username" : "jones" }
> db.users.find({username: "jones"})
{ "_id" : ObjectId("5100d17e63a6bbddc0629e5d"), "username" : "jones" }
>
