Execute subqueries to count votes for each suggestion in this 54-minute tutorial video. Learn how to implement voting functionality in a full-stack application using client-side code from the Rose repository and server-side code from the Baklava repository. Follow along as the instructor demonstrates aggregation techniques, authentication processes, and database schema modifications. Gain insights into creating many-to-many relationships, rebuilding databases, and implementing sign-up features. The video is part of a comprehensive playlist covering various aspects of web development, including mutations, testing, and table swapping.