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MongoDB — Deleting Documents — 4

  1. db.<collection>.deleteOne({<field>: <value>})
    1. Deletes the first matching document
  2. db.<collection>.deleteMany({<field1>: {$gt: <num>}, <field2>:<bool>})
    1. Deletes all matching documents
  3. db.<collection>.deleteMany({<field1>: {$exists: <bool>}, <field2>:<bool>})
    1. Use of exists with deleteMany
  4. db.<collection>.deleteMany({});
    1. Deleting all documents in a collection
  5. db.<collection>.drop()
    1. Deletes collection all together (use carefully)
  6. db.dropDatabase()
    1. Deletes entire database

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