Writing basic MongoDB queries

Before you can write MongoDB queries and inject some data, first you must connect to MongoDB, so open a terminal and type the following:

$ mongo

Then you can list the databases that you have in the MongoDB system:

> show dbs

You should get the following output:

admin 0.000GB
config 0.000GB

These two databases (admin and config) are the default ones from MongoDB. However, we should create new databases according to our needs and purposes.

Creating a database

As soon as you have logged in the MongoDB shell, you can create a fresh database in MongoDB by using the use command:

> use nuxt-app

You should get the following result:

switched to db nuxt-app

However, note that it is the same when you want to select an existing database:

> use admin

You should get the following result:

switched to db admin

If you want to drop a database, first select the database using the use command, for example, use nuxt-app, followed by the dropDatabase function:

> db...