I am getting null for every query

Working with Data
1

I am trying to use MongoDB in ubuntu while querying data in MongoDB I am getting null as the answer.
I can get into the database and view collections but when using the find command I am getting null as answer

I taught I typing the spelling wrong but that was not the case, cause I cross-checked the spelling but then I am getting the answer as null
while using the count() function I am getting 0 as and
I checked in the atlas cluster for any missing database but I am seeing all the data
and then I deleted the cluster and recreated the database but the problem was not solved

2

Please show us screenshot or the query you tried and the DB name

3

Screenshot 2021-09-21 183346
Screenshot 2021-09-21 1833461237×676 93.2 KB

this was the screenshot

4

Why did you mark the screenshot as the solution?

It is not. The following is the solution.

By running

use zips

you switch from sample_training database to zips database which does not exist.

Run you findOne() after running

use sample_training.

5

I have run the
use smaple_training
and the
use zips
commands and the zips collection exist

6

It is not.

Please provide a screenshot of running the commands:

use zips
show collections

The show collections you shared, list zips as a collection. You did that right after running use sample_trainings but then you ran use zips.

7

oook i was using the
use zips
command
now its working
thank you sir