MongoDB

MongoDB uses the dot notation to access the elements of an array and the fields of an embedded document.

The mongorestore command is used to restore the backup.

The syntax of the skip() methopd is as follows: >db.COLLECTION_NAME.find().limit(NUMBER).skip(NUMBER)

The update() and save() methods are used to update documents into a collection.

The db command gives the name of the currently selected database.

In MongoDB, a collection is a group of MongoDB documents.

The mongodump command is used to create a backup of the database.

What is the syntax of the sort() method? In MongoDB, the following syntax is used for sorting documents: >db.COLLECTION_NAME.find().sort({KEY:1})

The syntax of the limit() method is as follows: >db.COLLECTION_NAME.find().limit(NUMBER)