How to delete documents by query efficiently in mongo?

I'm trying to delete a document of a collection with its ObjectId ( _id) but I don't know exactly what I'm doing wrong.

You can use a query to remove all matching documents. var query = {name: 'John'}; db.collection.remove(query);

I want to have a daily job that runs and deletes all documents by user_id, if the user_id has a doc with event_type 'c'.

To delete all documents from a collection, pass an empty filter document {} to the db.collection.deleteMany() method.

To remove the first document that match a deletion criteria, call the remove method with the query criteria and the justOne parameter set to true or 1 . The ...

To delete all documents that match a deletion criteria, pass a filter parameter to the IMongoCollection.DeleteMany() method. The following example removes all ...

From the Documents tab, input a query into the Query Bar to filter deleted documents. To delete all documents in the collection, leave the Query Bar blank.

Read on to learn how to create and manage documents within MongoDB, including how to delete, update, query, and more.

The deleteOne and deleteMany methods are two of the most common techniques used to delete documents from a MongoDB collection.

To delete one document, we use the delete_one() method. The first parameter of the delete_one() method is a query object defining which document to delete.