how to add a new propety into all documents in mongodb
db.users.update({}, { "$set" : { "age": 30 }}, false,true)
// users: collection name, age: new property
//false it's upsert argument, it tells mongo to not insert a new document when no match is found
// true it's multi argument, it tells mongo to update multiple documents that meet the query criteriamongodb add new field
// If you want to add a new_field to all your collection, you have to use empty
// selector, and set multi flag to true (last param) to update all the documents
db.your_collection.update(
{},
{ $set: {"new_field": 1} },
false,
true
)
// In the above example last 2 fields false, true specifies the upsert and multi flags.
// Upsert: If set to true, creates a new document when no document matches the query criteria.Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
