MongoDB does not provide commands to create a database."weird" You can use usedbName statement to select a database in the mongo shell. Use the following example:
MongoDB database names cannot be empty and must have fewer than 64 characters.
First, of the all, Use below command to select database. To create a new database make sure it not exists.
You have a database name selected. Now you need to insert at least one document to keep this database. As you have already executed use command above, so all the statements will be executed on above database.
Show Databases – After inserting the first record the database will be listed in show dbs command.
Also, You can run db command to find current selected database.