MongoDb delete
1 db.coll.remove({name: "Max"})
2 db.coll.remove({name: "Max"}, {justOne: true})
3 db.coll.remove({}) // WARNING! Deletes all the docs but not the collection itself and its index definitions
4 db.coll.remove({name: "Max"}, {"writeConcern": {"w": "majority", "wtimeout": 5000}})
5 db.coll.findOneAndDelete({"name": "Max"})how to remove field from document in mongodb
=> Use the $unset field update operator to completely remove a field from a document.
{ $unset: { "field_name": "value" } }
=> You can specify multiple fields to remove by separating them with a comma.
{ $unset: { name: "", weight: "" } }Copyright © 2021 Codeinu
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