How to load data in layout which will be there in extended version also?

In my recent project on Laravel.I have extended some views from layouts folder.

I have a dashboard.blade.php file inside of layouts folder which has data from database. Now if i tried to extend the dashboard in another view should i write the same Query in that another view?

if i show list of courses in dashboard view, and extend the view suppose course details page where also should have list of courses. should i write Query for that view also?

via Chebli Mohamed