$ mongod &
$ mongo
> use ark
> db.users.insert({ name: 'Noah' })
> db.animals.insert({ name: 'Elephant', type: 'pachyderm' })
> db.animals.insert({ name: 'Tiger', type: 'cat' })
> db.animals.find({ type: 'pachyderm' })
{ "_id" : ObjectId("5370d1b4050f0b6e16263f19"), "name" : "Elephant", "type" : "pachyderm" }
| show dbs | Lists all databases. |
| use DATABASE_NAME | Switches the current database to a specific database. |
| show collections | Lists the collections in the current database. |
| db.dropDatabase() | Removes the current database. |
| db.COLLECTION_NAME.count() | Returns the number of documents in the collection. |
| db.COLLECTION_NAME.drop() | Drops the collection from the database. |
| db.COLLECTION_NAME.find() | Finds a set of documents that match a given query (returns a cursor). |
| db.COLLECTION_NAME.findOne() | Finds the first document that matches the given query. |
| db.COLLECTION_NAME.insert() | Creates a new document in the collection. |
| db.COLLECTION_NAME.remove() | Deletes documents from the collection. |
| db.COLLECTION_NAME.update() | Modifies a document in the collection. |
| cursor.next() | Returns the next document in the cursor. |
| cursor.hasNext() | Returns true if the cursor has documents and can be iterated. |
| cursor.limit() | Constrains the size of a cursor's result set. |
| cursor.skip() | Returns a cursor that begins returning results only after ignoring the first X documents. |
| cursor.sort() | Sorts the documents in the cursor. |
| cursor.forEach() | Applies a function to each document in the cursor. |
| cursor.map() | Applies a function to each document in the cursor and collects the return values in an array. |
| cursor.toArray() | Converts the cursor to an array of documents. |