Chapter 2 : Using MongoDB Shell / Topic : Basic Querying, Create and Insert, Explicitly Creating Collections, Inserting Documents Using Loop, Inserting by Explicitly Specifying _id, Update, Delete, Read / Content : Import CSV, Connect Mongo shell, Select mydb, Display collections of mydb , display all the database names, using the help() command. Create db, Create and add documents in testdb, Display documents , update() method , remove() method, find() method , skip( ), sort( ) , limit( ) , explain() function