In the previous recipe, we saw how to view some important statistics of a collection from an administrative perspective. In this recipe, we'll get an even clearer picture; getting those (or most of those) statistics at the database level.
To find the stats of the database, we need to have a server up and running, and a single node should be ok. Refer to the Single node installation of MongoDB recipe in Chapter 1, Installing and Starting the MongoDB Server, for how to start the server. The data on which we would be operating needs to be imported into the database. The steps to import the data are given in the Creating test data recipe in Chapter 2, Command-line Operations and Indexes. Once these steps are completed, we are all set to go ahead with this recipe. Refer to the previous recipe, Viewing collection stats, if you need to see how to view stats at the collection level.