MongoDB CRUD Operation "multi" Parameter while updating multiple documents
Example
To update multiple documents in a collection, set the multi option to true.
db.collection.update(
query,
update,
{
upsert: boolean,
multi: boolean,
writeConcern: document
}
)
multi is optional. If set to true, updates multiple documents that meet the query criteria. If set to false, updates one document. The default value is false.
db.mycol.find() { "_id" : ObjectId(598354878df45ec5), "title":"MongoDB Overview"} { "_id" : ObjectId(59835487adf45ec6), "title":"NoSQL Overview"} { "_id" : ObjectId(59835487adf45ec7), "title":"Tutorials Point Overview"}
db.mycol.update({'title':'MongoDB Overview'}, {$set:{'title':'New MongoDB Tutorial'}},{multi:true})
