mongo command line drop database code example
Example 1: drop mongo database
// First show what databases have you gotten
show dbs
// then, use the database name that you want to drop
use YOUR_DATABASE_NAME
// now you can drop it
db.dropDatabase()
// show collections should be empty now
show collections
Example 2: how to drop db in mongo shell
use DB_NAME // go to the db you want to delete
db.dropDatabase()
show dbs
// droppped db will not be shown