Deleting Documents

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deleteOne and deleteMany

deleteOne removes the first document matching the filter. deleteMany removes all matching documents. Both return an acknowledged flag and deletedCount.

// Delete a specific student
db.students.deleteOne({ name: "Karan Mehta" });

// Delete all unenrolled students
db.students.deleteMany({ enrolled: false });

// Delete ALL documents in the collection (use with caution!)
db.students.deleteMany({});

Passing {} as a filter to deleteMany wipes the entire collection. Double-check your filter before running in production.

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