This video tutorial was made for our customer in order to demonstrate how to build a custom view to extract the data they need.
Here we are building a view to extract sales data per project where each project is classified into a category. We link invoice table with project table and add filter to be able to view data by year and category of project.
The tables and data sources used in this view are custom tables from our back office management solution built on Drupal 8. However, the principles of building a view are applicable to any other data source and this tutorial can be used to learn simple view building with tables relationships and filter.