To display a database in the SHOW dbs list, do we need to add collections to it?

Yes, to display a database in the list, first create a database and add collection(s), else it won’t be visible in the list. After that, use the SHOW dbs command to display the database name in the list of databases.

Following is the query to create a database −

> use webcustomertracker;
switched to db webcustomertracker

Let us first create a collection with documents −

> db.first_Collection.insert({"Name":"Chris"});
WriteResult({ "nInserted" : 1 })

Following is the query to display all documents from a collection with the help of find() method −

> db.first_Collection.find();

This will produce the following output −

{ "_id" : ObjectId("5ce2760836e8b255a5eee94a"), "Name" : "Chris" }

Following is the query to display your creating database −

> show dbs;

This will produce the following output −

admin     0.002GB
business   0.000GB
config    0.000GB
local   0.000GB
main   0.000GB
my   0.001GB
sample   0.002GB
sampleDemo   0.000GB
studentSearch   0.000GB
test   0.019GB
university   0.000GB
web   0.001GB
webcustomertracker   0.000GB

Anvi Jain

Published on 14-Jun-2019 11:56:35