How to add new field in every documents ?
![](https://www.conan.in.th/wp-content/uploads/2017/05/tapewall_LM.jpeg)
db.your_collection.update({},
{$set : {"new_field":1}},
{upsert:false,
multi:true})
db.your_collection.update({},
{$set : {"new_field":1}},
{upsert:false,
multi:true})