MongoDB 8 · Query and update operators
Remove a field
Delete a field from a document.
db.users.updateOne({ name: "Ada" }, { $unset: { legacyId: "" } })
Official MongoDB 8 documentation
More query and update operators commands
- Match any of several values
- Combine conditions with OR
- Search with a regular expression
- Check that a field exists
- Match inside an array
- Add to an array
All query and update operators commands · MongoDB 8 cheatsheet