MongoDB Drop Database

We can use the following query to drop ( DELETE EVERYTHING) from a MongoDB database

( please be careful on running the query, it deletes everything )

   use [database]
   db.dropDatabase() 

MongoDB Like Query

We can do the following to achieve SQL's LIKE equivalent on a Query :

MongoDB :  db.users.find({"name": /jo/})

MYSQL Equivalent:   select * from users where name like '%jo%' 

MongoDB - show all database in server

We can use following commands to view all databases in the server
   show dbs
OR
   show databases