mongo change all documents on field
//Update all documents with "oldName" to "newName"
db.names.updateMany({ "name": "oldName" }, { $set: { "name" : "newName" } })mongo change all documents on field
//Update all documents with "oldName" to "newName"
db.names.updateMany({ "name": "oldName" }, { $set: { "name" : "newName" } })MongoDb update
1 db.coll.update({"_id": 1}, {"year": 2016}) // WARNING! Replaces the entire document
2 db.coll.update({"_id": 1}, {$set: {"year": 2016, name: "Max"}})
3 db.coll.update({"_id": 1}, {$unset: {"year": 1}})
4 db.coll.update({"_id": 1}, {$rename: {"year": "date"} })
5 db.coll.update({"_id": 1}, {$inc: {"year": 5}})
6 db.coll.update({"_id": 1}, {$mul: {price: NumberDecimal("1.25"), qty: 2}})
7 db.coll.update({"_id": 1}, {$min: {"imdb": 5}})
8 db.coll.update({"_id": 1}, {$max: {"imdb": 8}})
9 db.coll.update({"_id": 1}, {$currentDate: {"lastModified": true}})
10 db.coll.update({"_id": 1}, {$currentDate: {"lastModified": {$type: "timestamp"}}})
11
12 // Array
13 db.coll.update({"_id": 1}, {$push :{"array": 1}})
14 db.coll.update({"_id": 1}, {$pull :{"array": 1}})
15 db.coll.update({"_id": 1}, {$addToSet :{"array": 2}})
16 db.coll.update({"_id": 1}, {$pop: {"array": 1}}) // last element
17 db.coll.update({"_id": 1}, {$pop: {"array": -1}}) // first element
18 db.coll.update({"_id": 1}, {$pullAll: {"array" :[3, 4, 5]}})
19 db.coll.update({"_id": 1}, {$push: {scores: {$each: [90, 92, 85]}}})
20 db.coll.updateOne({"_id": 1, "grades": 80}, {$set: {"grades.$": 82}})
21 db.coll.updateMany({}, {$inc: {"grades.$[]": 10}})
22 db.coll.update({}, {$set: {"grades.$[element]": 100}}, {multi: true, arrayFilters: [{"element": {$gte: 100}}]})
23
24 // Update many
25 db.coll.update({"year": 1999}, {$set: {"decade": "90's"}}, {"multi":true})
26 db.coll.updateMany({"year": 1999}, {$set: {"decade": "90's"}})
27
28 // FindOneAndUpdate
29 db.coll.findOneAndUpdate({"name": "Max"}, {$inc: {"points": 5}}, {returnNewDocument: true})
30
31 // Upsert
32 db.coll.update({"_id": 1}, {$set: {item: "apple"}, $setOnInsert: {defaultQty: 100}}, {upsert: true})
33
34 // Replace
35 db.coll.replaceOne({"name": "Max"}, {"firstname": "Maxime", "surname": "Beugnet"})
36
37 // Save
38 db.coll.save({"item": "book", "qty": 40})
39
40 // Write concern
41 db.coll.update({}, {$set: {"x": 1}}, {"writeConcern": {"w": "majority", "wtimeout": 5000}})Copyright © 2021 Codeinu
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