Created
January 30, 2017 23:47
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Node U2L1 Drills
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// Get all | |
db.restaurants.find(); | |
// Limit and sort | |
db.restaurants. | |
find(). | |
sort({name: 1}). | |
limit(10); | |
// Get by _id | |
var myId = db.restaurants.findOne({}, {_id: true})._id; | |
db.restaurants.findOne({_id: myId}); | |
// Get by value | |
db.restaurants.find({borough: "Queens"}); | |
// Count | |
db.restaurants.count(); | |
// Count by nested value | |
db.restaurants.find({'address.zipcode': '11206'}).count() | |
// delete by id | |
var myId = db.restaurants.findOne({}, {_id: true})._id; | |
db.restaurants.removeOne({_id: myId}); | |
// update a single document | |
var myId = db.restaurants.findOne({}, {_id: true})._id; | |
db.restaurants.updateOne( | |
{_id: myId}, | |
{$set: {name: 'Bizz Bar Bang'}}); | |
// update many documents | |
db.restaurants.updateMany( | |
{'address.zipcode': '10035'}, | |
{$set: {'address.zipcode': '10036'}}); |
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