Problem with find

I am not able to get results using the find query. I keep getting below error while trying to run IDE in the course.

[js] ReferenceError: sample_training is not defined :
@(shell):1:1

I get the same error with every variation I try.

Please show the screenshot or the query you are running

Hi @dung_tran, welcome to the community.
Please note, that sample_training is the name of the database.
Make sure you have executed the following command before performing any queries on the database.

use sample_training

e.g.:

In case you have any doubts, please feel free to reach out to us.

Thanks and Regards.
Sourabh Bagrecha,
Curriculum Services Engineer