
In this quest, you will dive deep into the world of SQL query optimization, focusing on techniques that can significantly improve the performance of your data engineering workflows. You will explore common pitfalls in SQL query design and learn how to refactor queries for better execution plans. Through hands-on exercises, you will analyze real-world datasets, identify performance bottlenecks, and apply optimization strategies such as indexing, query rewriting, and using analytical functions. By the end of this quest, you will have the skills to write efficient SQL queries that can handle large volumes of data, making you a valuable asset in any data engineering team.