db.restaurants.find();
db.restaurants.find().sort({name: 1}).limit(10)
var myId = db.restaurants.findOne({}, {_id: true}). _id;db.restaurants.findOne({_id: myId});
db.restaurants.find({borough: 'Queens'})
db.restaurants.count()
db.restaurants.find({'address.zipcode': '11206'}).count()
db.restaurants.deleteOne({_id: ObjectId("59074c7c057aaffaafb0dbb1")})
db.restaurants.updateOne({_id: myId}, {$set: {name: 'Pork Stand'}})
db.restaurants.updateMany({'address.zipcode': '10035'}, {$set: {'address.zipcode': '10036'}})