MongoDB never creates empty databases. To create there should be at least one collection. There is a single command to switch or create a MongoDB Database.
We need to get current database name to verify if it switched correctly or not. To check current database name there is an object of database:
db; for example: >db myTestDB > To list all databases use: show dbs; To delete/drop databases use: db.dropDatabase()
Following is the syntax of USE command .db.dropDatabase()