Insert a document if the update filter matches nothing.
- Category: CRUD: Documents — part of the MongoDB Tutorial on GoCareerGo
- Read the short summary above, then check the linked docs for full syntax/behaviour
- Interview tip: be ready to explain "Upsert Option" in one sentence, then back it up with a tiny example
// Upsert Option — minimal example
// db.collection.<operation>(...)Tip
Quick recall: "Upsert Option" — insert a document if the update filter matches nothing.