Data Engineering Interview Questions: SQL and Databases I

Starting a career in data engineering is both exciting and challenging. As data continues to be the core of decision-makers in organizations, the role of a data engineer becomes increasingly important. It’s not about moving data from point A to point B. It’s about writing efficient SQL queries, building scalable databases, and understanding the inner workings of database engines to optimize performance. In the competitive world of data engineering interviews, you need more than just a little knowledge. You must demonstrate proficiency in writing optimized SQL, designing data warehouses that can scale with growing data demands, and show an understanding of at least one database engine’s internals. This depth of knowledge not only sets you apart but also prepares you to face real-world challenges effectively.