Are you spending too much time dealing with slow queries? Do you feel hesitant to share your queries with more experienced colleagues? If so, this course is perfect for you. In this course, you will gain the knowledge and skills to optimize your PostgreSQL database, significantly reducing query execution time. Through practical exercises, you will explore the relationships between Olympic participation, country climate, and gross domestic product using intertwined data. By making changes to filtering methods and utilizing subqueries, you will witness firsthand the impact on query performance. Additionally, you will gain insights into the characteristics of a row-oriented database and understand how Hawaii's volcanoes affect air quality. Furthermore, this course will teach you how to restructure your queries effectively using the query planner and the SQL order of operations. By mastering these techniques, you will impress your colleagues with your effortless efficiency. Don't waste any more time - enroll in this course and take control of your query performance.