The MongoDB database

Data is stored in a database in the form of collections. It is a container for collection, just like in SQL databases where the database is a container for tables.

To create a database in MongoDB, we use the following command:

This command creates a database called sample_db, which can be used as a container for storing collections.

The default database for mongo is test. If we do not specify a database before storing our collection, MongoDB will store the collection in the test database.

Each database has its own set of files on the filesystem. A MongoDB server can have multiple databases. We can see the list of all the databases using the following command: